transform number with commas in number without commas

Question

How could I transform a number with commas like 123,245 to a number without commas like this 123245, I know that you could already put commas in number without them but how to do that in reverse? pure JAVASCRIPT please!

Answer 1

var number = Number("123,456".split(",").join(""));

Or:

var number = parseInt("123,456".split(",").join(""));

Answer 2

An alternative is using a regex /,/g

console.log("123,245".replace(/,/g, ''));
console.log("123,245,566".replace(/,/g, ''));