I have this code. How I can change it to allow only numbers and at the start.

$(document).on("input", ".numeric>input , .numeric", function() {
    this.value = this.value.replace(/[^0-9\.]/g,'');
});

Let me know and many thanks!

CodePudding user response：

You can easily add the as the first digit, as i understand you are trying to match a phone number, your code must be as the following :

$(document).on("input", ".numeric>input , .numeric", function() {
    this.value = this.value.replace(/[ 0-9\.]/g,'');
});

here is a beautiful online tool where you can build them easily, you do not have to memorise everything :

RegEx