Question

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How do I enumerate the properties of a javascript object?

If I have a javascript object like this :

data = {
    a : 2,
    b : 3
}

but a and b are arbitrary and decided at runtime. Is there any way to go through the object
and access all properties without knowing the key?

Answer 1

data = {
    a : 2,
    b : 3
}

for(var propName in data) {
    if(data.hasOwnProperty(propName)) {
        var propValue = data[propName];
        // do something with each element here
    }
}