Run results for: Promo Contains

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_3) AppleWebKit/601.4.4 (KHTML, like Gecko) Version/9.0.3 Safari/601.4.4

Browser: Safari 9

Operating system: Mac OS X 10.11.3

Device Platform: Other

Date tested: 8 years ago

Test name	Executions per second
testArrayContains	1886654.0 Ops/sec
testObjectContains	3184857.0 Ops/sec
testUnderscoreContains	1073632.0 Ops/sec
testLodashContains	793557.1 Ops/sec

HTML Preparation code:

<html>
    <head>
        <script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
        <script>
        underscore = _;
        </script>


        <script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.12.0/lodash.min.js"></script>

        <script>
        lodash = _;
        </script>
    </head>
    <body>
    </body>
</html>

Script Preparation code:

var PromosArray = [
    {
        type: "regular",
        display: "$123.00"
    },
    {
        type: "markdown",
        display: "$100.00"
    },
    {
        type: "promo",
        display: "$80.00"
    }
];

var PromosObject = {
    regular: "$123.00",
    markdown: "$100.00",
    promo: "$80.00"
};

function contains(array, type) {
    for (var i = 0; i < array.length; i++) {
        if (array[i]["type"] === type) {
            return true;
        }
    }

    return false;
}

function testArrayContains() {
  contains(PromosArray, "regular");
  contains(PromosArray, "markdown");
  contains(PromosArray, "promo");
}

  
function testObjectContains() {
    if (PromosObject.regular) {
        // skip display logic
    }

    if (PromosObject.markdown) {
        // skip display logic
    }

    if (PromosObject.promo) {
        // skip display logic
    }
}

function testUnderscoreContains() {
    underscore.some(PromosArray, "type", "regular");
    underscore.some(PromosArray, "type", "markdown");
    underscore.some(PromosArray, "type", "promo");
}

function testLodashContains() {
    lodash.some(PromosArray, "type", "regular");
    lodash.some(PromosArray, "type", "markdown");
    lodash.some(PromosArray, "type", "promo");
}

Tests:

testArrayContains
testArrayContains();
testObjectContains
testObjectContains();
testUnderscoreContains
testUnderscoreContains();
testLodashContains
testLodashContains();