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- var _setup = require('./_setup.js');
- var underscore = require('./underscore.js');
- var _chainResult = require('./_chainResult.js');
- var each = require('./each.js');
-
- // Add all mutator `Array` functions to the wrapper.
- each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
- var method = _setup.ArrayProto[name];
- underscore.prototype[name] = function() {
- var obj = this._wrapped;
- if (obj != null) {
- method.apply(obj, arguments);
- if ((name === 'shift' || name === 'splice') && obj.length === 0) {
- delete obj[0];
- }
- }
- return _chainResult(this, obj);
- };
- });
-
- // Add all accessor `Array` functions to the wrapper.
- each(['concat', 'join', 'slice'], function(name) {
- var method = _setup.ArrayProto[name];
- underscore.prototype[name] = function() {
- var obj = this._wrapped;
- if (obj != null) obj = method.apply(obj, arguments);
- return _chainResult(this, obj);
- };
- });
-
- // Extracts the result from a wrapped and chained object.
- underscore.prototype.value = function() {
- return this._wrapped;
- };
-
- // Provide unwrapping proxies for some methods used in engine operations
- // such as arithmetic and JSON stringification.
- underscore.prototype.valueOf = underscore.prototype.toJSON = underscore.prototype.value;
-
- underscore.prototype.toString = function() {
- return String(this._wrapped);
- };
-
- module.exports = underscore;
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