82f2b76e25
We now use webpack instead of SystemJS, effectively bundling modules into one file (plus commons chunks) for every entry point. This results in a much smaller extension size (almost half). Furthermore we use yarn/npm even for extension run-time dependencies. This relieves us from manually vendoring and building dependencies. It's also easier to understand for new developers familiar with node.
64 lines
1.7 KiB
JavaScript
64 lines
1.7 KiB
JavaScript
var apply = require('./_apply'),
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arrayPush = require('./_arrayPush'),
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baseRest = require('./_baseRest'),
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castSlice = require('./_castSlice'),
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toInteger = require('./toInteger');
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/** Error message constants. */
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var FUNC_ERROR_TEXT = 'Expected a function';
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/* Built-in method references for those with the same name as other `lodash` methods. */
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var nativeMax = Math.max;
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/**
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* Creates a function that invokes `func` with the `this` binding of the
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* create function and an array of arguments much like
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* [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
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*
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* **Note:** This method is based on the
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* [spread operator](https://mdn.io/spread_operator).
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*
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* @static
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* @memberOf _
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* @since 3.2.0
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* @category Function
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* @param {Function} func The function to spread arguments over.
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* @param {number} [start=0] The start position of the spread.
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* @returns {Function} Returns the new function.
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* @example
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*
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* var say = _.spread(function(who, what) {
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* return who + ' says ' + what;
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* });
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*
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* say(['fred', 'hello']);
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* // => 'fred says hello'
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*
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* var numbers = Promise.all([
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* Promise.resolve(40),
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* Promise.resolve(36)
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* ]);
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*
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* numbers.then(_.spread(function(x, y) {
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* return x + y;
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* }));
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* // => a Promise of 76
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*/
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function spread(func, start) {
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if (typeof func != 'function') {
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throw new TypeError(FUNC_ERROR_TEXT);
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}
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start = start == null ? 0 : nativeMax(toInteger(start), 0);
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return baseRest(function(args) {
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var array = args[start],
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otherArgs = castSlice(args, 0, start);
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if (array) {
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arrayPush(otherArgs, array);
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}
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return apply(func, this, otherArgs);
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});
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}
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module.exports = spread;
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