EN
JavaScript - get function source code
8 points
In this article, we would like to show how to get source code for a given function in JavaScript.
Quick solution (use toString() on function):
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const myFunction = () => {2
console.log('myFunction called...');3
};4
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console.log(myFunction.toString());Note: be careful using transpilers or minifiers that change function source code - code is optimized.
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function myFunction1() {2
console.log('myFunction1 called...');3
}4
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const myFunction2 = function FunctionName() {6
console.log('FunctionName called...');7
};8
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const myFunction3 = function() {10
console.log('myFunction3 called...');11
};12
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const myFunction4 = () => {14
console.log('myFunction3 called...');15
};16
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// Usage example:18
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console.log(myFunction1.toString());20
console.log(myFunction2.toString());21
console.log(myFunction3.toString());22
console.log(myFunction4.toString());