Question

Given the following string, how would I extract the string between the quotes that follows data-selected (i.e. THIS-DATA). I would like it to work regardless of whether single or double quotes are used, or whether there is any white-space before or after the equal sign. Thank you

<td><img alt="abc" src="lib/templates/administrator/images/star.png" data-selected="THIS_DATA" title="None" class="vtip"></td>

Answer 1

Simple regex, assuming THIS_DATA doesn’t contain quotes:

var reg = /data-selected\s*=\s*["']([^"']*)["']/;

To use:

function extractData(yourString) {
    var match = str.match(yourString);
    return match ? match[1] : "";
}

Edit:

Or even simpler:

var data = str.replace(/.*data-selected\s*=\s*["']([^"']*)["'].*/, "$1");