javascript - Why a null result is freezing the script and how to avoid it? -

when use below code:

if(string.match(/td>0/g).length == 8) {     /*do something*/ }

and no /td>0/ matched, returns null result prevents script below executing.

i know why code freezing, , how avoid , find solution or alternative .match() ?

try this(more recommended):

var matching=string.match(/td>0/g); if( matching != null && matching.length === 8) {     /*do something*/ }

use === instead of ==.

Ben