JavaScript Call by Reference

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What is call by reference?

In call by reference, any changes made to formal parameters will affect the actual parameters.


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<!DOCTYPE html> <html> <body> <p>Check your console. (Press F12)</p> <script> var x = document.getElementById("point"); var arr = [1, 2, 3]; var obj = {brand:"Honda", color:"Red"}; function myFunction(a, b){ a[2] = 6; b.color = "green"; } myFunction(arr, obj); console.log("arr : "+ arr); console.log("obj : "+ JSON.stringify(obj)) </script> </body> </html>


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