solo numérica regex js
// https://regex101.com/r/qyq3PG/1
// or
/^[0-9]*$/
MM.Mirzaei.Dev
// https://regex101.com/r/qyq3PG/1
// or
/^[0-9]*$/let test = "1(919)-723-9378"
console.log(test.replace(/[^\d]/g, "")) // output: 19197239378
/\D/g //\D is everything not \d
/[^\d]/g //\d is numerical characters 0-9
/[^0-9]/g //The ^ inside [] means not, so in this case, not numerical charactersstr = "hello123!"
str.match(/(\d+)/)[1] //Best way to find first matching number in string ;)/^[\+\-]?\d*\.?\d+(?:[Ee][\+\-]?\d+)?$/
/*
matched values:
-2.14e10
+14E-20
42.69
*/