test262/test/harness/arrayContains.js

//-----------------------------------------------------------------------------
function arrayContains(arr, expected) {
    var found;
    for (var i = 0; i < expected.length; i++) {
        found = false;
        for (var j = 0; j < arr.length; j++) {
            if (expected[i] === arr[j]) {
                found = true;
                break;
            }
        }
        if (!found) {
            return false;
        }
    }
    return true;
}