Why we shouldn’t use “new String()” in JavaScript?

Here is why we shouldn’t use “new String()” while creating variable of string.


var foo = new String("A");

var baz = new String("A");

console.log(foo == baz);//false

console.log(foo === baz);//false

whereas if notice the below code

var foo = String("A");//var foo = "A";

var baz = String("A");//var baz = "A";

console.log(foo == baz);//true

console.log(foo === baz);//true

if you create any variable with “new” keyword it would be considered as object in JavaScript & both objects when compared with == or === it’s not same. So now we know why primitive types are created like var foo = “A”;

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