Files
lodash/overArgs.js
2017-01-11 12:11:56 -08:00

43 lines
945 B
JavaScript

import apply from './.internal/apply.js';
/**
* Creates a function that invokes `func` with its arguments transformed.
*
* @since 4.0.0
* @category Function
* @param {Function} func The function to wrap.
* @param {Function[]} [transforms=[identity]]
* The argument transforms.
* @returns {Function} Returns the new function.
* @example
*
* function doubled(n) {
* return n * 2;
* }
*
* function square(n) {
* return n * n;
* }
*
* const func = overArgs((x, y) => [x, y], [square, doubled]);
*
* func(9, 3);
* // => [81, 6]
*
* func(10, 5);
* // => [100, 10]
*/
function overArgs(func, transforms) {
const funcsLength = transforms.length;
return function(...args) {
let index = -1;
const length = Math.min(args.length, funcsLength);
while (++index < length) {
args[index] = transforms[index].call(this, args[index]);
}
return apply(func, this, args);
};
}
export default overArgs;