JavaScript Morsels

Know when it is no longer JSON

Do you ever call your variables that get populated from a JSON string something with “json” in them?

function processData(json) {
    // if (json.accountType == "savings") ...
}

Realize that “JSON” only describes the format of the data you’re fetching through XHR or <script>. It is a string representation of an object. When you’re in the JavaScript domain, and about to process the parsed result of the JSON string, leave “json” behind:

function processData(obj) {
    // if (obj.accountType == "savings") ...
}