How to clear JSON object using JavaScript or jQuery

Question

I have a JSON object as follows. After sending ajax call I want to clear this. How I can do?

var cfamFwdDtls = {
    cndtwizid: [],
    clientIdsInstnIds: [],
    positioncd: '',
    positionCnt: '',
    rcrtrInstnId: '',
    positionLocation: {
        cntryIdFrCndt: '',
        stateIdFrCndt: '',
        zipIdFrCndt: '',
        cityIdFrCndt: ''
    },
    searchPstnSkill: []
};

Answer 1

If you want to reset the entire object, just reset the variable back to {};

cfamFwdDtls = {}; 
// or
cfamFwdDtls = new Object; 
// will prevent garbage collection
delete cfamFwdDtls;

However, if you want a more fine-grained way of "resetting" the object, you are going to need to define what specifically your requirements for a reset are. Regardless, you can always iterate through the object and make the necessary objects.

for (var key in cfamFwdDtls) {
    if (typeof cfamFwdDtls[key] == "string") {
        cfamFwdDtls[key] = '';
    } else if (Array.isArray(cfamFwdDtls[key])) {
        cfamFwdDtls[key] = [];
    } else {
        delete cfamFwdDtls[key];
    }
}

The above definition could be a possible way to define your particular situation since I only see strings and arrays in your object. If the key is neither of those, it would just delete the key. This could be tailored as you find necessary.