jquery - How to write regexp? -

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how write regexp in jquery

i.e. var regexp = /^([a-za-z0-9_\-\.])+\@([a-za-z0-9_\-\.])+\.([a-za-z]{2,4})$/;

if there syntax write expression..

can 1 me, how write , if u know useful site share meee..

you can either write

var pattern = /abc/[modifiers];

or

var pattern = new regex("abc",[modifiers]);

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