element-plus/docs/en-US/component/input-number.md

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---
title: Input
lang: en-US
---
epic(website): refactor website (#3426) * feat(website): init viteperss (#3162) * init vitepress * Finish homepage * relayout page * partial finish * update * update use lang * remove font weight; change font size * docs: optimize docs folder structure * reorganize project * fix ssr issue * fix build issues Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> * feat(website) integrate with crowdin (#3218) - Introduce Crowdin CLI - Add script for fetching Crowdin token from env - Add script for local development * fix formatting * update codeblocks (#3249) * feat(docs): update website preview script - Update azure preview build script - Eliminate dead links * bootstrap docs * fix homepage layout issue * fix formating * Finish ToC and codepen integration * reorganized files and fix issue that causes demo unavailable after build * feat(docs): migration documentations (#3283) * feat(docs): migration documentations - Move documentations to docs/ * remove unused files * docs: [popconfirm] migrate document (#3285) * feat(docs): migrate documentation from space.md to upload.md (#3292) - Upload documentations acorrodingly * docs: [date-picker] migrate document (#3289) * docs: [date-picker] migrate document * fix: typo * docs: [slider] migrate document (#3287) * docs: migrate documents (#3290) * docs: migrate-datetime-picker * docs: migrate descriptions * docs: migrate dialog * docs: migrate divider * docs: migrate drawer * docs: migrate drapdown * docs: fix drapdown * docs: migrate empty * docs: migrate form * docs: add scoped for style * docs: simplify toRefs * chore: update doc (#3297) * chore: update doc * chore: update doc * chore: update doc * feat(docs): migrate documentations from infinite-scroll to page-header (#3303) - Update docs accordingly - Update CodePen icon to match style - Update component name to match others * docs: migrate documentions (#3293) migrate list: * image * popover * scrollbar * radio * rate * skeleton * select * select-v2 * reault * progress * pagination * chore: update doc (#3305) Co-authored-by: 0song <0song@gmail.com> * Fix broken pipeline * chore: update demo plugin * website perfection * fix hydration bug * docs: update guide (#3342) * WIP docs * docs: update docs * add dark mode * make dev fetch components from local instead of node_modules Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: 三咲智子 <sxzz@sxzz.moe> * fix(docs): fix codepen code example issue (#3380) * fix(docs): fix codepen code example issue - Add lang="ts" for all example files - Fix codepen import error * revert changes in resource.vue * feat(docs): complete crowdin integration (#3408) * Update mds for preparing the integration script * deprecate old website * update sponsors and even handler for resize * update build script for preview * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * update deploy script and some bugs * Fix existing issue * chore(project): add dev preview workflow * chore(project): rename dev to staging * update the size of toc * update staging-preview script * update preview scripts * enable website build for preview * fix build error * final commitment for update the details * remove azure pipeline * move docs ignores into docs and update date Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com>
2021-09-17 00:18:50 +08:00
# Input Number
Input numerical values with a customizable range.
## Basic usage
:::demo Bind a variable to `v-model` in `<el-input-number>` element and you are set.
input-number/basic
:::
:::tip
When inputting invalid string to the input box, input value will emit `NaN` to the upper layer as result of error
:::
epic(website): refactor website (#3426) * feat(website): init viteperss (#3162) * init vitepress * Finish homepage * relayout page * partial finish * update * update use lang * remove font weight; change font size * docs: optimize docs folder structure * reorganize project * fix ssr issue * fix build issues Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> * feat(website) integrate with crowdin (#3218) - Introduce Crowdin CLI - Add script for fetching Crowdin token from env - Add script for local development * fix formatting * update codeblocks (#3249) * feat(docs): update website preview script - Update azure preview build script - Eliminate dead links * bootstrap docs * fix homepage layout issue * fix formating * Finish ToC and codepen integration * reorganized files and fix issue that causes demo unavailable after build * feat(docs): migration documentations (#3283) * feat(docs): migration documentations - Move documentations to docs/ * remove unused files * docs: [popconfirm] migrate document (#3285) * feat(docs): migrate documentation from space.md to upload.md (#3292) - Upload documentations acorrodingly * docs: [date-picker] migrate document (#3289) * docs: [date-picker] migrate document * fix: typo * docs: [slider] migrate document (#3287) * docs: migrate documents (#3290) * docs: migrate-datetime-picker * docs: migrate descriptions * docs: migrate dialog * docs: migrate divider * docs: migrate drawer * docs: migrate drapdown * docs: fix drapdown * docs: migrate empty * docs: migrate form * docs: add scoped for style * docs: simplify toRefs * chore: update doc (#3297) * chore: update doc * chore: update doc * chore: update doc * feat(docs): migrate documentations from infinite-scroll to page-header (#3303) - Update docs accordingly - Update CodePen icon to match style - Update component name to match others * docs: migrate documentions (#3293) migrate list: * image * popover * scrollbar * radio * rate * skeleton * select * select-v2 * reault * progress * pagination * chore: update doc (#3305) Co-authored-by: 0song <0song@gmail.com> * Fix broken pipeline * chore: update demo plugin * website perfection * fix hydration bug * docs: update guide (#3342) * WIP docs * docs: update docs * add dark mode * make dev fetch components from local instead of node_modules Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: 三咲智子 <sxzz@sxzz.moe> * fix(docs): fix codepen code example issue (#3380) * fix(docs): fix codepen code example issue - Add lang="ts" for all example files - Fix codepen import error * revert changes in resource.vue * feat(docs): complete crowdin integration (#3408) * Update mds for preparing the integration script * deprecate old website * update sponsors and even handler for resize * update build script for preview * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * update deploy script and some bugs * Fix existing issue * chore(project): add dev preview workflow * chore(project): rename dev to staging * update the size of toc * update staging-preview script * update preview scripts * enable website build for preview * fix build error * final commitment for update the details * remove azure pipeline * move docs ignores into docs and update date Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com>
2021-09-17 00:18:50 +08:00
## Disabled
:::demo The `disabled` attribute accepts a `boolean`, and if the value is `true`, the component is disabled. If you just need to control the value within a range, you can add `min` attribute to set the minimum value and `max` to set the maximum value. By default, the minimum value is `0`.
input-number/disabled
:::
## Steps
Allows you to define incremental steps.
:::demo Add `step` attribute to set the step.
input-number/steps
:::
## Step strictly
:::demo The `step-strictly` attribute accepts a `boolean`. if this attribute is `true`, input value can only be multiple of step.
input-number/step-strictly
:::
## Precision
:::demo Add `precision` attribute to set the precision of input value.
input-number/precision
:::
:::tip
The value of `precision` must be a non negative integer and should not be less than the decimal places of `step`.
:::
## Size
refactor(style): adjust component size to large/default/small (#4491) * refactor(style): adjust component size to large/default/small * refactor(components): avatar size & use flex instead of block * refactor(components): adjust check button size * refactor(components): adjust tag size * refactor(components): adjust size doc * fix(components): datetime-picker demo style width * refactor(components): color-picker size & block to flex * refactor(components): adjust slider input size * refactor(components): adjust radio input size for demo * refactor(components): adjust select size & docs * refactor(components): adjust form radio size & docs * refactor(components): add windicss for docs * refactor(components): adjust skeleton avatar size to css var * refactor(components): simplify typography size demo * refactor(components): adjust dropdown size & demo * refactor(components): adjust descriptions size * fix(components): datetime-picker showcase class pollute global button * chore(ci): upgrade docs dependencies to fix ci * fix(ci): add highlight because vitepress not export it * fix(ci): disable line for no-console * fix(ci): remove mini to fix test * fix(style): code font size * fix(style): button span flex style * fix(style): button padding horizontal default 15px * refactor(components): adjust tag padding size & demo * refactor(components): adjust form line-height for input * refactor(components): adjust dropdown menu size & button padding * fix(style): picker separator block to flex center * fix: dropdown button span items-center * style: adjust input-with-icon & size demo & fix input vitepress load * chore: upgrade dependencies * chore: upgrade dependencies * ci: fix website build * ci: regenerate pnpm-lock.yaml * ci: use dev pnpm-lock * ci: update pnpm-lock.yaml
2021-12-12 17:54:21 +08:00
Use attribute `size` to set additional sizes with `large` or `small`.
epic(website): refactor website (#3426) * feat(website): init viteperss (#3162) * init vitepress * Finish homepage * relayout page * partial finish * update * update use lang * remove font weight; change font size * docs: optimize docs folder structure * reorganize project * fix ssr issue * fix build issues Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> * feat(website) integrate with crowdin (#3218) - Introduce Crowdin CLI - Add script for fetching Crowdin token from env - Add script for local development * fix formatting * update codeblocks (#3249) * feat(docs): update website preview script - Update azure preview build script - Eliminate dead links * bootstrap docs * fix homepage layout issue * fix formating * Finish ToC and codepen integration * reorganized files and fix issue that causes demo unavailable after build * feat(docs): migration documentations (#3283) * feat(docs): migration documentations - Move documentations to docs/ * remove unused files * docs: [popconfirm] migrate document (#3285) * feat(docs): migrate documentation from space.md to upload.md (#3292) - Upload documentations acorrodingly * docs: [date-picker] migrate document (#3289) * docs: [date-picker] migrate document * fix: typo * docs: [slider] migrate document (#3287) * docs: migrate documents (#3290) * docs: migrate-datetime-picker * docs: migrate descriptions * docs: migrate dialog * docs: migrate divider * docs: migrate drawer * docs: migrate drapdown * docs: fix drapdown * docs: migrate empty * docs: migrate form * docs: add scoped for style * docs: simplify toRefs * chore: update doc (#3297) * chore: update doc * chore: update doc * chore: update doc * feat(docs): migrate documentations from infinite-scroll to page-header (#3303) - Update docs accordingly - Update CodePen icon to match style - Update component name to match others * docs: migrate documentions (#3293) migrate list: * image * popover * scrollbar * radio * rate * skeleton * select * select-v2 * reault * progress * pagination * chore: update doc (#3305) Co-authored-by: 0song <0song@gmail.com> * Fix broken pipeline * chore: update demo plugin * website perfection * fix hydration bug * docs: update guide (#3342) * WIP docs * docs: update docs * add dark mode * make dev fetch components from local instead of node_modules Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: 三咲智子 <sxzz@sxzz.moe> * fix(docs): fix codepen code example issue (#3380) * fix(docs): fix codepen code example issue - Add lang="ts" for all example files - Fix codepen import error * revert changes in resource.vue * feat(docs): complete crowdin integration (#3408) * Update mds for preparing the integration script * deprecate old website * update sponsors and even handler for resize * update build script for preview * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * update deploy script and some bugs * Fix existing issue * chore(project): add dev preview workflow * chore(project): rename dev to staging * update the size of toc * update staging-preview script * update preview scripts * enable website build for preview * fix build error * final commitment for update the details * remove azure pipeline * move docs ignores into docs and update date Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com>
2021-09-17 00:18:50 +08:00
:::demo
input-number/size
:::
## Controls Position
:::demo Set `controls-position` to decide the position of control buttons.
input-number/controlled
:::
## Attributes
| Attribute | Description | Type | Accepted Values | Default |
| ----------------------------- | ------------------------------------------------ | ---------------------- | --------------- | ----------- |
| model-value / v-model | binding value | number / undefined | — | — |
| min | the minimum allowed value | number | — | `-Infinity` |
| max | the maximum allowed value | number | — | `Infinity` |
| step | incremental step | number | — | 1 |
| step-strictly | whether input value can only be multiple of step | boolean | — | false |
| precision | precision of input value | number | — | — |
| size | size of the component | string | large/small | default |
| readonly | same as `readonly` in native input | boolean | — | false |
| disabled | whether the component is disabled | boolean | — | false |
| controls | whether to enable the control buttons | boolean | — | true |
| controls-position | position of the control buttons | string | right | - |
| name | same as `name` in native input | string | — | — |
| label | label text | string | — | — |
| placeholder | placeholder in input | string | - | - |
| value-on-clear **(\> 2.2.0)** | value should be set when input box is cleared | string / number / null | min/max | - |
| validate-event | whether to trigger form validation | boolean | - | true |
epic(website): refactor website (#3426) * feat(website): init viteperss (#3162) * init vitepress * Finish homepage * relayout page * partial finish * update * update use lang * remove font weight; change font size * docs: optimize docs folder structure * reorganize project * fix ssr issue * fix build issues Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> * feat(website) integrate with crowdin (#3218) - Introduce Crowdin CLI - Add script for fetching Crowdin token from env - Add script for local development * fix formatting * update codeblocks (#3249) * feat(docs): update website preview script - Update azure preview build script - Eliminate dead links * bootstrap docs * fix homepage layout issue * fix formating * Finish ToC and codepen integration * reorganized files and fix issue that causes demo unavailable after build * feat(docs): migration documentations (#3283) * feat(docs): migration documentations - Move documentations to docs/ * remove unused files * docs: [popconfirm] migrate document (#3285) * feat(docs): migrate documentation from space.md to upload.md (#3292) - Upload documentations acorrodingly * docs: [date-picker] migrate document (#3289) * docs: [date-picker] migrate document * fix: typo * docs: [slider] migrate document (#3287) * docs: migrate documents (#3290) * docs: migrate-datetime-picker * docs: migrate descriptions * docs: migrate dialog * docs: migrate divider * docs: migrate drawer * docs: migrate drapdown * docs: fix drapdown * docs: migrate empty * docs: migrate form * docs: add scoped for style * docs: simplify toRefs * chore: update doc (#3297) * chore: update doc * chore: update doc * chore: update doc * feat(docs): migrate documentations from infinite-scroll to page-header (#3303) - Update docs accordingly - Update CodePen icon to match style - Update component name to match others * docs: migrate documentions (#3293) migrate list: * image * popover * scrollbar * radio * rate * skeleton * select * select-v2 * reault * progress * pagination * chore: update doc (#3305) Co-authored-by: 0song <0song@gmail.com> * Fix broken pipeline * chore: update demo plugin * website perfection * fix hydration bug * docs: update guide (#3342) * WIP docs * docs: update docs * add dark mode * make dev fetch components from local instead of node_modules Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: 三咲智子 <sxzz@sxzz.moe> * fix(docs): fix codepen code example issue (#3380) * fix(docs): fix codepen code example issue - Add lang="ts" for all example files - Fix codepen import error * revert changes in resource.vue * feat(docs): complete crowdin integration (#3408) * Update mds for preparing the integration script * deprecate old website * update sponsors and even handler for resize * update build script for preview * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * update deploy script and some bugs * Fix existing issue * chore(project): add dev preview workflow * chore(project): rename dev to staging * update the size of toc * update staging-preview script * update preview scripts * enable website build for preview * fix build error * final commitment for update the details * remove azure pipeline * move docs ignores into docs and update date Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com>
2021-09-17 00:18:50 +08:00
## Events
| Event Name | Description | Parameters |
| ---------- | ------------------------------- | ------------------------------------------------------ |
| change | triggers when the value changes | (currentValue: number \| NaN, oldValue: number \| NaN) |
| blur | triggers when Input blurs | (event: Event) |
| focus | triggers when Input focuses | (event: Event) |
epic(website): refactor website (#3426) * feat(website): init viteperss (#3162) * init vitepress * Finish homepage * relayout page * partial finish * update * update use lang * remove font weight; change font size * docs: optimize docs folder structure * reorganize project * fix ssr issue * fix build issues Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> * feat(website) integrate with crowdin (#3218) - Introduce Crowdin CLI - Add script for fetching Crowdin token from env - Add script for local development * fix formatting * update codeblocks (#3249) * feat(docs): update website preview script - Update azure preview build script - Eliminate dead links * bootstrap docs * fix homepage layout issue * fix formating * Finish ToC and codepen integration * reorganized files and fix issue that causes demo unavailable after build * feat(docs): migration documentations (#3283) * feat(docs): migration documentations - Move documentations to docs/ * remove unused files * docs: [popconfirm] migrate document (#3285) * feat(docs): migrate documentation from space.md to upload.md (#3292) - Upload documentations acorrodingly * docs: [date-picker] migrate document (#3289) * docs: [date-picker] migrate document * fix: typo * docs: [slider] migrate document (#3287) * docs: migrate documents (#3290) * docs: migrate-datetime-picker * docs: migrate descriptions * docs: migrate dialog * docs: migrate divider * docs: migrate drawer * docs: migrate drapdown * docs: fix drapdown * docs: migrate empty * docs: migrate form * docs: add scoped for style * docs: simplify toRefs * chore: update doc (#3297) * chore: update doc * chore: update doc * chore: update doc * feat(docs): migrate documentations from infinite-scroll to page-header (#3303) - Update docs accordingly - Update CodePen icon to match style - Update component name to match others * docs: migrate documentions (#3293) migrate list: * image * popover * scrollbar * radio * rate * skeleton * select * select-v2 * reault * progress * pagination * chore: update doc (#3305) Co-authored-by: 0song <0song@gmail.com> * Fix broken pipeline * chore: update demo plugin * website perfection * fix hydration bug * docs: update guide (#3342) * WIP docs * docs: update docs * add dark mode * make dev fetch components from local instead of node_modules Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: 三咲智子 <sxzz@sxzz.moe> * fix(docs): fix codepen code example issue (#3380) * fix(docs): fix codepen code example issue - Add lang="ts" for all example files - Fix codepen import error * revert changes in resource.vue * feat(docs): complete crowdin integration (#3408) * Update mds for preparing the integration script * deprecate old website * update sponsors and even handler for resize * update build script for preview * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * fix preview-build error * update deploy script and some bugs * Fix existing issue * chore(project): add dev preview workflow * chore(project): rename dev to staging * update the size of toc * update staging-preview script * update preview scripts * enable website build for preview * fix build error * final commitment for update the details * remove azure pipeline * move docs ignores into docs and update date Co-authored-by: Kevin <sxzz@sxzz.moe> Co-authored-by: zouhang <zouhang@didiglobal.com> Co-authored-by: msidolphin <msidolphin@outlook.com> Co-authored-by: Aex <spryti@qq.com> Co-authored-by: 0song <82012629+0song@users.noreply.github.com> Co-authored-by: 0song <0song@gmail.com>
2021-09-17 00:18:50 +08:00
## Methods
| Method | Description | Parameters |
| ------ | -------------------------------- | ---------- |
| focus | get focus the input component | - |
| blur | remove focus the input component | — |