remove all letters from string javascript code example

Example 1: javascript remove non numeric chars from string keep dot

var s = "-12345.50 €".replace(/[^\d.-]/g, ''); // gives "-12345.50"

Example 2: remove all characters from string javascript

const string = "hello world 123";

// remove all o's from the string
string.replace(/o/g, "") // "hell wrld 123"

// remove all letters from the string
string.replace(/[A-Za-z]/g, "") // "  123"

// remove all digits from the string
string.replace(/\d/g, "") // "hello world "