pure javascript relace not begin numeric 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: javascript string replace
const p = 'Its going to rain today and its going to rain tomorrow';
// Example of replacing all occurrances
// g = global search, which searches all instances
// i = case insensitive, which will match 'a' with 'A'
const regex = /rain/gi;
console.log(p.replace(regex, 'snow'));
// expected output: "Its going to snow today and its going to snow tomorrow"
// Example of replacing the first occurance
console.log(p.replace('rain', 'snow'));
// expected output: "Its going to snow today and its going to rain tomorrow"