Question

I a string name content that has inside the text “data-RowKey=xxx”. I am trying to get out xxx so I tried the following:

var val = content.substring(12 + content.indexOf("data-RowKey="), 3);

This does not work at all. rather than just get three characters I get a very long string. Can anyone see what I am doing wrong

Answer 1

This works:

var value = content.match(/data-RowKey=(.*)/)[1];

Live DEMO

If there could be values after the xxx, use this:

"data-RowKey=123abc".match(/data-RowKey=(.{3}).*/)[1] // 123