only-numeric

A Common JS package that has a string for the first argument and the second (optional) argument is boolean. If you use a decimal POINT (period) as a decimal marker the second arg should be true (absent second argument defaults to true), if you use a decimal COMMA as a decimal marker the second argument should be false.

Installation:

npm install @cstan/only-numeric

Use:

const { onlyNumeric } = require("@cstan/only-numeric")

let s = "- $USD 1,234.56";
let n = onlyNumeric(s);
console.log(`The number is: ${n}`);
// -1234.56

OR

let s = " EU - 1.234,56";
let n = onlyNumeric(s, false); // Note: false added as second argument
console.log(`The number is: ${n}`);
// -1234,56