Regex javascript remove negative percentage "-"

Question

I am in need of finding and removing the "-" negative sign in front of a percentage using either Regex or jQuery.

I've tried doing this:

$('[data-excel]').each(function() { 
   $(this).html($(this).html().replace(' -', ' ')); 
});

But that doesn't seem to remove it. The reason why i have a space before the negative sign ** -** is there is a word in each that has it worded like this-and so it would pick up that one instead of the one that's the percentage on the page.

An example of what I am looking at:

About -38% is made with this-and also with something else.

Any help would be great! Thanks.

Regedit and regular expressions (regex) are two very different things. — James Donnelly
– James Donnelly, Commented Oct 21, 2014 at 15:49
Oops... getting my coding lang all mixed. Corrected. Thanks @ÁlvaroG.Vicario for pointing that out :) — StealthRT
– StealthRT, Commented Oct 21, 2014 at 15:54
What about (+/-)38% ? Because nothing is made up of a negative percentage of anything. — user557597
– user557597, Commented Oct 21, 2014 at 16:04

Matt Burland · Accepted Answer · 2014-10-21 16:03:05Z

1

myString.replace(/-(?=\d)/,"")

Use a lookahead to look for a - followed by a digit.

http://regex101.com/r/rV3rF3/1

For completeness, to insure that the number is actually followed by a %, simply:

myString.replace(/-(?=d+%)/,"");

To account for (optional) decimals:

myString.replace(/-(?=\d+\.?\d*%)/,"");

Which matches:

-      literal -
?=     followed by (lookahead):
d+     1 or more digits
\.?    0 or 1 decimal point
d*     0 or more digits

http://regex101.com/r/rV3rF3/2

edited Oct 21, 2014 at 16:03

answered Oct 21, 2014 at 15:57

Matt Burland

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5 Comments

James Donnelly Over a year ago

This doesn't ensure that the value is a percentage. This would turn "I scored -5 so now my average is -20% less than before" into "I scored 5 so now my average is 20% less than before".

Matt Burland Over a year ago

@JamesDonnelly: True, but an easy fix (see vks' solution). The OP didn't state whether there are or are not other numbers in the string.

StealthRT Over a year ago

@MattBurland no other numbers are in the string. Just the percentage and text.

wirey00 Over a year ago

@StealthRT so there are no decimals? like -13.5%

StealthRT Over a year ago

@ᾠῗᵲᄐᶌ Nope, not at all.

vks · Accepted Answer · 2014-10-21 15:57:27Z

0

-(?=\d+%)

Try this.This will look for the percentage sign after -.Replace with empty string.See demo.

http://regex101.com/r/rQ6mK9/25

edited Oct 21, 2014 at 15:57

answered Oct 21, 2014 at 15:49

vks

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1 Comment

James Donnelly Over a year ago

The question is vary vague, but percentage symbols are usually placed after numbers. A negative percentage would be -5%, for instance, not -%5.

MD.Riyaz · Accepted Answer · 2018-09-05 16:53:20Z

0

Try This: myStr.replace(/[/-]/g, '')

answered Sep 5, 2018 at 16:53

MD.Riyaz

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