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Meaning of some phrases in native javascript


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  • $.get = () => value();

This defines a method, get(), on the object $. The method, when called, simply calls a function, value(). It's a so-called arrow function - a short-form syntax for declaring functions that are bound to the current scope.

  • return $

This returns the value of $ from the current scope. It's impossible to say from what you've posted what the value of $ is.

  • ((win, doc, name) => { ... }

This is incomplete, and is currently a parse error. It too uses arrow syntax to declare a function. Judging by the opening bracket, it may be the start of an IIFE, or immediately-invoked function expression. The full form would be:

((win, doc, name) => { ... })(/* args here */)

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