用JQuery / Javascript替换字符串中的所有逗号

Question

I have a form where I have a couple hundred text boxes and I'd like to remove any commas when they are loaded and prevent commas from being entered. Shouldn't the follow code work assuming the selector is correct?

$(document).ready(function () {
  $("input[id*=_tb]")
  .each(function () {
      this.value.replace(",", "")
  })
  .onkeyup(function () {
      this.value.replace(",", "") 
  })
});

Answer 1

$(function(){
    $("input[id*=_tb]").each(function(){
        this.value=this.value.replace(/,/g, "");
    }).on('keyup', function(){
        this.value=this.value.replace(/,/g, "");
    });
});

See here for an explanation and examples of the javascript string.replace() function:

http://davidwalsh.name/javascript-replace

as @Vega said, this doesn't write the new value back to the textbox - I updated the code to do so.

Answer 2

使用带有g标志的正则表达式而不是字符串： .replace(/,/g, "") 。

Answer 3

Your code looks right except that it is not setting the value back to the input field,

$(document).ready(function () {
  $("input[id*=_tb]")
  .each(function () {
      this.value = this.value.replace(/,/g, "")
  })
  .onkeyup(function () {
      this.value = this.value.replace(/,/g, "") 
  })
});

Edit: Used regex