bc518174
 王天杨
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/* eslint no-console: 0 */
export const getIntersectionKeys = (preObj, nextObj) =>
[Object.keys(preObj), Object.keys(nextObj)].reduce((a, b) => a.filter(c => b.includes(c)));
export const identity = param => param;
/*
* @description: convert camel case to dash case
* string => string
*/
export const getDashCase = name => name.replace(/([A-Z])/g, v => `-${v.toLowerCase()}`);
export const log = (...args) => {
console.log(...args);
};
/*
* @description: log the value of a varible
* string => any => any
*/
export const debug = name => item => {
log(name, item);
return item;
};
/*
* @description: log name, args, return value of a function
* function => function
*/
export const debugf =
(tag, f) =>
(...args) => {
const res = f(...args);
const name = tag || f.name || 'anonymous function';
const argNames = `(${args.map(JSON.stringify).join(', ')})`;
log(`${name}: ${argNames} => ${JSON.stringify(res)}`);
return res;
};
/*
* @description: map object on every element in this object.
* (function, object) => object
*/
export const mapObject = (fn, obj) =>
Object.keys(obj).reduce(
(res, key) => ({
...res,
[key]: fn(key, obj[key]),
}),
{},
);
export const getTransitionVal = (props, duration, easing) =>
props.map(prop => `${getDashCase(prop)} ${duration}ms ${easing}`).join(',');
const isDev = process.env.NODE_ENV !== 'production';
export const warn = (condition, format, a, b, c, d, e, f) => {
if (isDev && typeof console !== 'undefined' && console.warn) {
if (format === undefined) {
console.warn('LogUtils requires an error message argument');
}
if (!condition) {
if (format === undefined) {
console.warn(
'Minified exception occurred; use the non-minified dev environment ' +
'for the full error message and additional helpful warnings.',
);
} else {
const args = [a, b, c, d, e, f];
let argIndex = 0;
console.warn(format.replace(/%s/g, () => args[argIndex++]));
}
}
}
};
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