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index.js
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index.js
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/**
* Checks the given object (recursively if needed) and
* returns the object with its associated binary value for
* isEmpty evaluation
* @param obj
* @returns {*}
*/
function nestedEmptyCheck(obj) {
if(obj === "null") {
return true;
}
else if(typeof obj === "boolean"){
return false;
}
else if(typeof obj === "number"){
return false;
}
else if((typeof obj === "string") && obj.trim() != ''){
return false;
} else if((typeof obj === "string") && obj.trim() === ''){
return true;
}
else if(Array.isArray(obj)){
if(obj.length === 0) {
return true;
} else {
for(var i = 0; i < obj.length; i++) {
obj[i] = nestedEmptyCheck(obj[i]);
}
return obj;
}
}
else if(typeof obj === "object"){
var primaryKeys = Object.keys(obj);
if(primaryKeys && primaryKeys.length === 0) {
return true;
} else {
primaryKeys.forEach(key => {
var value = nestedEmptyCheck(obj[key]);
obj[key] = value;
});
return obj;
}
}
return obj;
}
/**
* before calling the nested validation method,
* makes a copy of the original object and calls with the copy of the object.
* @param object
* @returns {boolean}
*/
function isEmptyObj(object) {
if(object === undefined)
return true;
var objToSend = JSON.parse(JSON.stringify(object));
var result = nestedEmptyCheck(objToSend);
if(JSON.stringify(result).indexOf('false') > -1)
return false;
return true;
}
module.exports = isEmptyObj