How to remove all character from a string except $ followed by any digit ? string should contain $26272 i.e [dollar][digit] format only

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I have tried this
value.replace(/[^\$\d*]/g, '');

Its replacing all letter, special character etc. But If extra $ is given as input it is not replacing it.

e.g. If the input value is $686$7 It is not replacing the $ between 6 and 7.

I need the result should like be $6867

If the input is $$ the result should be $

If the input is $676$ o/p should be $676

If the input is $676$ o/p should be $676
If the input is $676h$ o/p should be $676

What I have tried:

value.replace(/[^\$\d*]/g, '');

Posted 2-Feb-17 20:06pm

himanshu shekhar

Updated 2-Feb-17 20:37pm

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Peter Leow · Answer 1 · 2017-02-02T20:37:00

Solution 1

One way is: First, remove the starting $, replace all non digit from the remaining string, then pre-pend the $ to the digit-only string. e.g.

<script>
str = "$68ab6$7$"; 
withoutFirst$ = str.replace("$", "");
removeNonDigits = withoutFirst$.replace(/[^\d]/g, "");
alert("$" + removeNonDigits);
</script>

Demo at JSFiddle[^]
BTW, to find any word than starts with a $, try this regex pattern:

/^\$.+/g

Posted 2-Feb-17 20:37pm

Peter Leow

Updated 2-Feb-17 20:44pm

v4

Comments

Karthik_Mahalingam 3-Feb-17 4:13am

5

Peter Leow 3-Feb-17 4:44am

Thank you, Karthik.