You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
1.2 KiB
40 lines
1.2 KiB
var baseRest = require('./_baseRest'),
|
|
toInteger = require('./toInteger');
|
|
|
|
/** Error message constants. */
|
|
var FUNC_ERROR_TEXT = 'Expected a function';
|
|
|
|
/**
|
|
* Creates a function that invokes `func` with the `this` binding of the
|
|
* created function and arguments from `start` and beyond provided as
|
|
* an array.
|
|
*
|
|
* **Note:** This method is based on the
|
|
* [rest parameter](https://mdn.io/rest_parameters).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Function
|
|
* @param {Function} func The function to apply a rest parameter to.
|
|
* @param {number} [start=func.length-1] The start position of the rest parameter.
|
|
* @returns {Function} Returns the new function.
|
|
* @example
|
|
*
|
|
* var say = _.rest(function(what, names) {
|
|
* return what + ' ' + _.initial(names).join(', ') +
|
|
* (_.size(names) > 1 ? ', & ' : '') + _.last(names);
|
|
* });
|
|
*
|
|
* say('hello', 'fred', 'barney', 'pebbles');
|
|
* // => 'hello fred, barney, & pebbles'
|
|
*/
|
|
function rest(func, start) {
|
|
if (typeof func != 'function') {
|
|
throw new TypeError(FUNC_ERROR_TEXT);
|
|
}
|
|
start = start === undefined ? start : toInteger(start);
|
|
return baseRest(func, start);
|
|
}
|
|
|
|
module.exports = rest;
|