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Contents
var arrayEvery = require('../internal/arrayEvery'),
baseFlatten = require('../internal/baseFlatten'),
baseIsFunction = require('../internal/baseIsFunction'),
restParam = require('./restParam');
/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';
/* Native method references for those with the same name as other `lodash` methods. */
var nativeMin = Math.min;
/**
* Creates a function that runs each argument through a corresponding
* transform function.
*
* @static
* @memberOf _
* @category Function
* @param {Function} func The function to wrap.
* @param {...(Function|Function[])} [transforms] The functions to transform
* arguments, specified as individual functions or arrays of functions.
* @returns {Function} Returns the new function.
* @example
*
* function doubled(n) {
* return n * 2;
* }
*
* function square(n) {
* return n * n;
* }
*
* var modded = _.modArgs(function(x, y) {
* return [x, y];
* }, square, doubled);
*
* modded(1, 2);
* // => [1, 4]
*
* modded(5, 10);
* // => [25, 20]
*/
var modArgs = restParam(function(func, transforms) {
transforms = baseFlatten(transforms);
if (typeof func != 'function' || !arrayEvery(transforms, baseIsFunction)) {
throw new TypeError(FUNC_ERROR_TEXT);
}
var length = transforms.length;
return restParam(function(args) {
var index = nativeMin(args.length, length);
while (index--) {
args[index] = transforms[index](args[index]);
}
return func.apply(this, args);
});
});
module.exports = modArgs;
Version data entries
153 entries across 80 versions & 8 rubygems