How to replace underscores with spaces using a regex in Javascript
How can I replace underscores with spaces using a regex in Javascript?
var ZZZ = "This_is_my_name";
If it is a JavaScript code, write this, to have transformed string in ZZZ2:
var ZZZ = "This_is_my_name";
var ZZZ2 = ZZZ.replace(/_/g, " ");
also, you can do it in less efficient, but more funky, way, without using regex:
var ZZZ = "This_is_my_name";
var ZZZ2 = ZZZ.split("_").join(" ");
Regular expressions are not a tool to replace texts inside strings but just something that can search for patterns inside strings. You need to provide a context of a programming language to have your solution.
I can tell you that the regex _ will match the underscore but nothing more.
For example in Groovy you would do something like:
"This_is_my_name".replaceAll(/_/," ")
===> This is my name
but this is just language specific (replaceAll method)..
var str1="my__st_ri_ng";
var str2=str1.replace(/_/g, ' ');
Replace “_” with ” “
The actual implementation depends on your language.
In Perl it would be:
s/_/ /g
But the truth is, if you are replacing a fixed string with something else, you don’t need a regular expression, you can use your language/library’s basic string replacement algorithms.
Another possible Perl solution would be:
tr/_/ /
To replace the underscores with spaces in a string, call the replaceAll() method, passing it an underscore and space as parameters, e.g. str.replaceAll(‘_’, ‘ ‘). The replaceAll method will return a new string where each underscore is replaced by a space.
const str="apple_pear_melon";
// ✅ without regular expression
const result1 = str.replaceAll('_', ' ');
console.log(result1); // 👉️ "apple pear melon"
// ✅ with regular expression
const result2 = str.replace(/_+/g, ' ');
console.log(result2); // 👉️ "apple pear melon"
