As the title states, I need to relace all occurrences of the $ sign in a string variable with an underscore.
I have tried:
str.replace(new RegExp('$', 'g'), '_');
But this doesn't work for me and nothing gets replaced.
$ in RegExp is a special character, so you need to escape it with backslash.
new_str = str.replace(new RegExp('\\$', 'g'), '_');
however, in JS you can use the simpler syntax
new_str = str.replace(/\$/g, '_');
You don’t need to use
RegExp. You can use the literal syntax:
You just need to escape the
$ character as it’s a special character in regular expressions that marks the end of the string.
Edit Oh, you can also use
join to solve this:
str.replace(new RegExp('\\$', 'g'), '_');
$ is special char in js, you need to escape it.
You don't need regular expressions just to replace one symbol:
newStr = oldStr.replace('$', '_')
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