ant-design-vue/components/_util/util.js
2020-12-15 16:27:35 +08:00

66 lines
1.9 KiB
JavaScript

export const isFunction = val => typeof val === 'function';
export const isArray = Array.isArray;
export const isString = val => typeof val === 'string';
export const isSymbol = val => typeof val === 'symbol';
export const isObject = val => val !== null && typeof val === 'object';
const onRE = /^on[^a-z]/;
const isOn = key => onRE.test(key);
const cacheStringFunction = fn => {
const cache = Object.create(null);
return str => {
const hit = cache[str];
return hit || (cache[str] = fn(str));
};
};
const camelizeRE = /-(\w)/g;
const camelize = cacheStringFunction(str => {
return str.replace(camelizeRE, (_, c) => (c ? c.toUpperCase() : ''));
});
const hyphenateRE = /\B([A-Z])/g;
const hyphenate = cacheStringFunction(str => {
return str.replace(hyphenateRE, '-$1').toLowerCase();
});
const capitalize = cacheStringFunction(str => {
return str.charAt(0).toUpperCase() + str.slice(1);
});
const hasOwnProperty = Object.prototype.hasOwnProperty;
const hasOwn = (val, key) => hasOwnProperty.call(val, key);
// change from vue sourcecode
function resolvePropValue(options, props, key, value) {
const opt = options[key];
if (opt != null) {
const hasDefault = hasOwn(opt, 'default');
// default values
if (hasDefault && value === undefined) {
const defaultValue = opt.default;
value = opt.type !== Function && isFunction(defaultValue) ? defaultValue() : defaultValue;
}
// boolean casting
if (opt.type === Boolean) {
if (!hasOwn(props, key) && !hasDefault) {
value = false;
} else if (value === '') {
value = true;
}
}
}
return value;
}
export function getDataAndAriaProps(props) {
return Object.keys(props).reduce((memo, key) => {
if (key.substr(0, 5) === 'data-' || key.substr(0, 5) === 'aria-') {
memo[key] = props[key];
}
return memo;
}, {});
}
export { isOn, cacheStringFunction, camelize, hyphenate, capitalize, resolvePropValue };