$x() function is not defined inside a Chrome extension, content script

Question

$x(\"//a[contains(@href,\'.jpg\')]\");

works as expected from the developer tools command prompt. But, when in an extension\'s content-script I get a \

Answer 1

I suggest adding this function to your code:

var xpath = function (xpathToExecute) {
    var result = [];
    var nodesSnapshot = document.evaluate(xpathToExecute, document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0; i < nodesSnapshot.snapshotLength; i++) {
        result.push(nodesSnapshot.snapshotItem(i));
    }
    return result;
}

and Just calling it in place of $x