Javascript Recursively Check Object Properties Exists - Sam East

January 5, 2018 AngularJS, Javascript, Web Apps

I need a function to check if my obj has a certain property and the value is not undefined to empty.

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var plugin = function() {
 
    var data = {
        options: {
            size: ""
        },
        source: {
            url: "v"
        }
    };
 
    if (!hasProp(data, 'url')) {
        return;
    }
 
    console.log('Do something with it');
 
}
 
plugin();
 
function hasProp(obj, prop) {
    for (var p in obj) {
        if (obj.hasOwnProperty(p)) {
            if (p === prop && obj[p] !== '' && obj[p] !== undefined && obj[p] !== null) {
                return obj;
            } else if (obj[p] instanceof Object && hasProp(obj[p], prop)) {
                return obj[p];
            }
        }
    }
    return null;
}

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