replace minus sign with brackets() using jquery

Question

--html--

<table>
<tr>
<th>a</th>
<th>b<th>
</tr>
<tbody class = "tabledata">
<tr>a</tr>
<tr>b</tr>
</tbody>
</table>

--jquery--

 $('.tabledata').empty();
for (var i = 0; i < result.length; i++) {
                var abc = '<tr><td>' + result[i]['a'] + '</td><td>' + result[i]['b'] + '</td></tr>'
                //var results = abc.replace(/-(.*)/, "()");

                $('.tabledata').append(abc);
}

the result carries negetive values such as -245.1, -897.7. I want to change them as (245.1) and (897.7). I have tried .replace function but could not get it work.

Do you also want to wrap non-negative values with brackets? – gurvinder372 Jan 09 '18 at 15:07 — gurvinder372, Jan 09 '18 at 15:07
no. positive values are not be written within brackets – LaMars Jan 09 '18 at 15:11 — LaMars, Jan 09 '18 at 15:11

gurvinder372 · Accepted Answer · 2018-01-09T15:09:59.737

3

You can use Math.abs while creating the abc itself

var a  = "(" + Math.abs( result[i]['a'] ) + ")";
var b  = "(" + Math.abs( result[i]['b'] ) + ")";
var abc = '<tr><td>' + a + '</td><td>' + b + '</td></tr>'

Or do some refactoring to make the code less verbose

var fnAbs = ( s ) => "(" + Math.abs( s ) + ")";
var abc = '<tr><td>' + fnAbs( result[i]['a'] ) + '</td><td>' + fnAbs( result[i]['b'] )  + '</td></tr>';

if you don't want to wrap non-negative values with () then change fnAbs as

var fnAbs = ( s ) => +s < 0 ? "(" + Math.abs( s ) + ")" : s;

Note

+s < 0, converts s to Number before comparison in case s is of type "string"

edited Jan 09 '18 at 15:09

answered Jan 09 '18 at 14:57

gurvinder372

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@FedericoklezCulloca Yes, added that too, Thanks. – gurvinder372 Jan 09 '18 at 14:58
1

This does assume all results would be negative and therefore need the brackets. Not sure if the poster needs non negative results returned without brackets. It wasn't clear. – SamBremner Jan 09 '18 at 15:05
Why does it not work in Internet Explorer. ECMAscript is not supported by IE. Can you suggest any other solution that is supported by all browsers? Thanks – LaMars Jan 18 '18 at 17:33
Arrow functions are not supported by IE. – gurvinder372 Jan 18 '18 at 17:50

replace minus sign with brackets() using jquery

1 Answers1