How to replace all spaces in a string

Question

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 have used .each function but I didn't get the 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.

possible duplicate of Replacing spaces with underscores in JavaScript? — BuZZ-dEE
– BuZZ-dEE, Commented Nov 24, 2014 at 14:50
Does this answer your question? How to replace all occurrences of a string? — HoldOffHunger
– HoldOffHunger, Commented Jul 31, 2020 at 17:24

Paul Draper · Accepted Answer · 2013-11-09 06:12:07Z

168

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

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

answered Nov 9, 2013 at 6:12

Paul Draper

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9 Comments

Kijewski Over a year ago

Also worth noting: use / +/g to replace runs of spaces with only one semicolon. Use /\s/g to replace all white space characters. Use /\s+/g to replace all runs of white spaces.

Jason Sperske Over a year ago

Or you could do this: $("#keyword").val($(this).val().split(' ').join(';')); if you wanted (for whatever reason) to avoid regexes

Jason Sperske Over a year ago

@Kay's edit (jsfiddle.net/pLmv7) is likely the best approach, it easily deals with multiple spaces producing only a single semicolon

Kijewski Over a year ago

And probably you what to use replaceSpace.trim() before applying the replace. trim() strips off leading and trailing white spaces.

Paul Draper Over a year ago

@JasonSperske, you could change it to /\s+(?=\S)/g. (Though /(?<=\S)\s+(?=\S)/g works for beginning and end.) There now you can like regexes again.

|

Zon · Accepted Answer · 2019-02-26 05:44:44Z

22

Pure Javascript, without regular expression:

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

edited Feb 26, 2019 at 5:44

answered Jan 21, 2016 at 13:48

Zon

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2 Comments

Julix Over a year ago

any difference in speed compared to the regex?

Zon Over a year ago

Tested - no performance difference, at least worthing attention.

ricks · Accepted Answer · 2018-01-18 18:20:23Z

9

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

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

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

answered Jan 18, 2018 at 18:20

ricks

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Comments

CommonSenseCode · Accepted Answer · 2017-05-24 11:12:45Z

6

VERY EASY:

just use this to replace all white spaces with -:

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

answered May 24, 2017 at 11:12

CommonSenseCode

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1 Comment

Metro Smurf Over a year ago

How is this any different than the accepted answer 4 years prior in 2013?

stefan · Accepted Answer · 2020-08-03 08:25:16Z

3

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

edited Aug 3, 2020 at 8:25

answered Mar 23, 2018 at 10:31

stefan

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Comments

Arshid KV · Accepted Answer · 2016-03-21 05:37:45Z

2

Simple code for replace all spaces

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

Out put: Howareyou

answered Mar 21, 2016 at 5:37

Arshid KV

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1 Comment

Metro Smurf Over a year ago

How is this any different than the same answer 2 months prior?

Jobelle · Accepted Answer · 2017-05-30 15:26:48Z

2

    $('#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.

edited May 30, 2017 at 15:26

answered Jan 21, 2016 at 13:58

Jobelle

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2 Comments

Badacadabra Over a year ago

While this code may answer the question, providing additional context regarding how and/or why it solves the problem would improve the answer's long-term value.

Jobelle Over a year ago

@badacadabra upadated :)

Usman Khan · Accepted Answer · 2019-11-01 08:08:30Z

-1

You can do the following fix for removing Whitespaces with trim and @ symbol:

var result = string.replace(/ /g, '');  // Remove whitespaces with trimmed value
var result = string.replace(/ /g, '@'); // Remove whitespaces with *@* symbol

edited Nov 1, 2019 at 8:08

Usman Khan

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answered Nov 1, 2019 at 6:35

Pushkar

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1 Comment

FZs Over a year ago

Please describe in your answer, what was the problem, and how will this snippet solve it, to help others understand this answer

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