Getting error while using const ,I am little confused in using const

Question

I'm wondering what is the difference between let and const in ECMAScript 6. Both of them are block scoped

There is indeed [no difference between them with regard to scoping](https://stackoverflow.com/q/31219420/1048572). — Bergi, Jan 11 '18 at 12:57

score 1 · Accepted Answer · edited Jan 11 '18 at 12:51

The difference between let and const is that once you bind a value/object to a variable using const, you can't reassign to that variable. Example:

const something = {};
something = 10; // Error.

let somethingElse = {};
somethingElse = 1000; // This is fine.

Note that const doesn't make something immutable.

const myArr = [];
myArr.push(10); // Works fine.

Probably the best way to make an object (shallowly) immutable at the moment is to use Object.freeze() on it.

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