Replace all whitespace characters
JavascriptTrimJavascript Problem Overview
I want to replace all occurrences of white space characters (space, tab, newline) in JavaScript.
How to do so?
I tried:
str.replace(/ /gi, "X")
Javascript Solutions
Solution 1 - Javascript
You want \s
> Matches a single white space > character, including space, tab, form > feed, line feed.
Equivalent to
[ \f\n\r\t\v\u00a0\u1680\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]
in Firefox and [ \f\n\r\t\v] in IE.
str = str.replace(/\s/g, "X");
Solution 2 - Javascript
We can also use this if we want to change all multiple joined blank spaces with a single character:
str.replace(/\s+/g,'X');
See it in action here: https://regex101.com/r/d9d53G/1
Explanation
> / \s+ / g
\s+matches any whitespace character (equal to[\r\n\t\f\v ])+Quantifier — Matches between one and unlimited times, as many times as possible, giving back as needed (greedy)
- Global pattern flags
- g modifier: global. All matches (don't return after first match)
Solution 3 - Javascript
\s is a meta character that covers all white space. You don't need to make it case-insensitive — white space doesn't have case.
str.replace(/\s/g, "X")
Solution 4 - Javascript
Have you tried the \s?
str.replace(/\s/g, "X");
Solution 5 - Javascript
If you use
str.replace(/\s/g, "");
it replaces all whitespaces. For example:
var str = "hello my world";
str.replace(/\s/g, "") //the result will be "hellomyworld"
Solution 6 - Javascript
Try this:
str.replace(/\s/g, "X")
Solution 7 - Javascript
Not /gi but /g
var fname = "My Family File.jpg"
fname = fname.replace(/ /g,"_");
console.log(fname);
gives
"My_Family_File.jpg"
Solution 8 - Javascript
Actually it has been worked but
just try this.
take the value /\s/g into a string variable like
String a = /\s/g;
str = str.replaceAll(a,"X");
Solution 9 - Javascript
You could use the function trim
let str = ' Hello World ';
alert (str.trim());
All the front and back spaces around Hello World would be removed.
Solution 10 - Javascript
I've used the "slugify" method from underscore.string and it worked like a charm:
https://github.com/epeli/underscore.string#slugifystring--string
The cool thing is that you can really just import this method, don't need to import the entire library.