Hey guys I'm trying to remove two characters and any white space from a string that looks like this.
var num1 = "34 345 324.34 $"
var num2 = "$34,345,324.34"
I basically want to remove $ and , and white space
so far I have this
num1.replace(/,|\s/g,""); //34345324.34$
num2.replace(/,|\s/g,""); //$34345324.34
How do I also delete the $
Thank you.
You seem to be dealing with currency strings. You may follow your blacklist approach and use .replace(/[,\s$]+/g,"") to remove all occurrences of 1+ commas, whitespaces and dollar symbols. However, once you have a pound, euro, yen, etc. currency symbol, you will have to update the regex.
Using a whitelisting approach is easier, remove all chars that are not on your whitelist, digits and dots:
.replace(/[^0-9.]+/g,"")
See the regex demo.
The [^0-9.]+ matches 1 or more occurrences of any chars other than (the [^...] is a negated character class that matches the inverse character ranges/sets) digits and a dot.
JS demo:
var nums = ["34 345 324.34 $", "$34,345,324.34"];
var rx = /[^0-9.]+/g;
for (var s of nums) {
console.log(s, "=>", s.replace(rx, ""));
}
For white space in the beginning of the string (or the end) use str.trim();, it will strip any trailing whitespaces from the beginning and/or the end of the string that contains them.
To remove all dots, spaces and dollars, add the dollar sign (escaped) into your regex:
/,|\s|\$/g
or simply
/[,\s\$]/g
Demo:
var num1 = "34 345 324.34 $"
var num2 = "$34,345,324.34"
var res1 = num1.replace(/[,\s\$]/g,""); //34345324.34
var res2 = num2.replace(/[,\s\$]/g,""); //34345324.34
console.log(res1)
console.log(res2)
replace(/[$,\s]/g,"").replace(/[$,\s]+/g, "");num2.replace(/[^\d.]/g, '')