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29 lines
1.5 KiB
TypeScript
29 lines
1.5 KiB
TypeScript
export const isClient = typeof window !== 'undefined';
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export const isDef = <T = any>(val?: T): val is T => typeof val !== 'undefined';
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export const assert = (condition: boolean, ...infos: any[]) => {
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if (!condition) console.warn(...infos);
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};
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const toString = Object.prototype.toString;
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export const isBoolean = (val: any): val is boolean => typeof val === 'boolean';
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export const isFunction = <T extends Function>(val: any): val is T => typeof val === 'function';
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export const isNumber = (val: any): val is number => typeof val === 'number';
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export const isString = (val: unknown): val is string => typeof val === 'string';
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export const isObject = (val: any): val is object => toString.call(val) === '[object Object]';
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export const isWindow = (val: any): val is Window =>
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typeof window !== 'undefined' && toString.call(val) === '[object Window]';
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export const now = () => Date.now();
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export const timestamp = () => +Date.now();
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export const clamp = (n: number, min: number, max: number) => Math.min(max, Math.max(min, n));
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export const noop = () => {};
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export const rand = (min: number, max: number) => {
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min = Math.ceil(min);
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max = Math.floor(max);
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return Math.floor(Math.random() * (max - min + 1)) + min;
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};
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export const isIOS =
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/* #__PURE__ */ isClient &&
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window?.navigator?.userAgent &&
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/iP(ad|hone|od)/.test(window.navigator.userAgent);
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export const hasOwn = <T extends object, K extends keyof T>(val: T, key: K): key is K =>
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Object.prototype.hasOwnProperty.call(val, key);
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