Why Can I Omit the 'function' Keyword in ES6 Object Method Definitions?

Object Method Definitions Without the "Function" Keyword

Problem:

It has been discovered that leaving off the "function" keyword in object method definitions unexpectedly allows the code to run in certain browsers. Despite the lack of the keyword, the method seemingly functions as intended. How is this possible, and is it a new feature of ES6?

Answer:

Yes, this behavior is a result of a change introduced in ES6, which allows for shortened method definitions without the "function" keyword. This feature allows methods to be defined in a more concise way, as seen in the example provided:

var module = {
    foobar(arg1) {
        alert(arg1);
    }
};
````

The above definition is equivalent to the traditional definition:

var module = {

foobar: function(arg1) {
    alert(arg1);
}

};

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