How to differentiate between a method and a function?

 

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  • Difference between a method and a function 33 answers

    • Methods are simply function references stored in an object property. Method in Javascript is merely a concept, not actually an existing syntactical part. Also, there is no method keyword in Javascript. 

    function foo() { /* whatever */ }

var bar = {};
bar.baz = foo;

// You'd consider this a function call
foo();

// While the following is actually syntactically also a function call
// you might consider baz a "method of the bar object"
bar.baz();
// and thus bar.baz() would then be a "method call".

    Please not that to access a property of an object you have two possible ways: object.property and object[propertyName] where propertyName is a string containing the name of the property.

    So 

    bar.baz()

    achieves exactly the same as and is identical to 

    bar["baz"]().
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