// Establish the root object, `window` (`self`) in the browser, `global` // on the server, or `this` in some virtual machines. We use `self` // instead of `window` for `WebWorker` support. var root = typeof self == 'object' && self.self === self && self || typeof global == 'object' && global.global === global && global || this || {}; // Save the previous value of the `_` variable. var previousUnderscore = root._; // ....... _.noConflict = function() { root._ = previousUnderscore; return this; };