Remove all spaces inside and out?

Question

0.00/5 (No votes)

See more:

See the snippet of javascript code below.

I need to not only trim, but remove all interior spaces between words/letters.

So the string " dog cat bird "
becomes:
"dogcatbird"

Thanks in advance.

if($.trim($('#question{QID} input:text:eq(0)').val()) == '') {

What I have tried:

if($.trim($(str.replace('#question{QID} input:text:eq(0)')).val()) == '') {

Posted 28-Nov-19 12:06pm

jeffschips

Updated 6-Dec-19 1:37am

v3

Add a Solution

3 solutions

Solution 2

If you just want to test whether a string contains any non-whitespace characters, you don't need to create a new string at all:

JavaScript

if (!(/[^\s]/).test($('#question{QID} input:text:eq(0)').val())) {
    // The value only contains whitespace.
}

Posted 29-Nov-19 2:05am

Richard Deeming

Comments

Maciej Los 29-Nov-19 8:14am

I'm curious of your suggestion in case when value contains non-whitespace characters...

Richard Deeming 29-Nov-19 8:22am

The OP is testing whether removing all whitespace characters from the string results in an empty string. Which is another way of testing whether the string contains non-whitespace characters.

I'm just slightly annoyed that I had to use a double negative to match the semantics of the original test. :)

Maciej Los 29-Nov-19 8:42am

:D
I forgot to mention, that... 5ed!

Solution 1

Use the javascript string replace method. No need to use trim as well.

JavaScript

newstring = oldstring.replace(/' '/g, '');

Update: need "g" flag to replace all, not just the first.

Posted 28-Nov-19 14:54pm

Peter_in_2780

Updated 28-Nov-19 14:56pm

v2

Comments

Afzaal Ahmad Zeeshan 29-Nov-19 0:18am

Just curious, what is the difference in simply doing this?

oldstring.replace(" ", "");

Peter_in_2780 29-Nov-19 0:29am

That will replace only the first occurrence.

Maciej Los 29-Nov-19 3:40am

5ed!

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Member 14680654 · Accepted Answer · 2019-12-06T01:37:00

Solution 3

Instead of using trim() , its easy with replace() which removes spaces between words and also the empty spaces before words.

var b=" In d ia "

console.log(b.replace(/ /g,""))

Answer:
India

Alternate solution:

console.log(b.replace(/\s/g,""))

Posted 6-Dec-19 1:37am

Member 14680654

Updated 6-Dec-19 18:57pm

v2

Comments

Richard Deeming 6-Dec-19 8:35am

Already mentioned in Solution 1.

CHill60 6-Dec-19 9:08am

Whilst I commend your desire to help I advise you to take more care - check previous solutions posted and make sure you are not just repeating what has already been said. Try to bring something new to the thread

[no name] 7-Dec-19 0:55am

Hi,
can u please execute and check your answer ,so called solution 1 and also even mine, so that you can know the difference.

thank you .