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")
This question is related to
javascript
trim
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.
Not /gi but /g
var fname = "My Family File.jpg"
fname = fname.replace(/ /g,"_");
console.log(fname);
gives
"My_Family_File.jpg"
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)
Have you tried the \s
?
str.replace(/\s/g, "X");
\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")
Try this:
str.replace(/\s/g, "X")
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");
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"
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.
Source: Stackoverflow.com