Question

The below script is returning null. It is returning correctly if I remove round brackets in str and patt1 for the text spot_Northeast(300)_comment

<script type="text/javascript">
var str="0000CentralGasEform2,0000CentralGasEformNew,spot_Northeast(300)_comment"; 
var patt1=/\bspot_Northeast(300)_comment/g;
document.write(str.match(patt1));
</script>

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In my application, the value in str is taken from the cookies and the value in patt1 is dynamic based on the window opened

regExp = new RegExp('\\b'+FormOpen+'\\b', 'g'); 

Here FormOpen is dynamic. Then I replace the match in cookie

var temp=CookieList.replace(regExp,""); 

Is there a way to tell RegEX that () is normal text instead of hardcoding?

Answer 1

escape them

var patt1=/\bspot_Northeast\(300\)_comment/g;

() are reserved characters in the context (.*) for instance, you need to tell the regex engine to treat them as normal text through a process called escaping