How to replace all spaces in a string

问题:

i have two html text input, out of that what ever user type in first text box that need to reflect on second text box while reflecting it should replace all spaces to semicolon. I did to some extant and it replacing for first space not for all, i think i need to use .each function of Jquery, i used that but i not got exact result see this

HTML :

Title : <input type="text" id="title"><br/>
Keyword : <input type="text" id="keyword">

Jquery:

$('#title').keyup(function() {
    var replaceSpace = $(this).val(); 

        var result = replaceSpace.replace(" ", ";");

        $("#keyword").val(result);

});

Thanks.

回答1:

var result = replaceSpace.replace(/ /g, ";");

Here, / /g is a regex (regular expression). The flag g means global. It causes all matches to be replaced.

回答2:

Pure Javascript, without regular expression:

var result = 
  replaceSpacesText.
  split(" ").
  join("");

回答3:

Simple code for replace all spaces

var str = 'How are you';
var replaced = str.split(' ').join('');

Out put: Howareyou

回答4:

VERY EASY:

just use this to replace all white spaces with -:

myString.replace(/ /g,"-")

回答5:

    $('#title').keyup(function () {
        var replaceSpace = $(this).val();

        var result = replaceSpace.replace(/\s/g, ";");

        $("#keyword").val(result);

    });

Since the javascript replace function do not replace 'all', we can make use the regular expression for replacement. As per your need we have to replace all space ie the \s in your string globally. The g character after the regular expressions represents the global replacement. The seond parameter will be the replacement character ie the semicolon.

回答6:

takes care of multiple white spaces and replaces it for a single character

myString.replace(/\s+/g, "-")

http://jsfiddle.net/aC5ZW/340/

回答7:

I came across this as well for me this has worked (covers most browsers):

myString.replace(/[\s\uFEFF\xA0]/g, ';');

Inspired by this trim polyfill after hitting some bumps: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trim#Polyfill