The values for "A" & "B" equal "Value" however the value for "C" equals [object Object]:
{
"A": "Value",
"B": "Value",
"C": {
"I": "Value",
"II": "Value"
}
}
I have a loop and would like to add an IF to check whether the value is equal to an [object Object], ie; has more than one field within.
What is the best way to achieve this?
Easiest would be to use typeof x where x is whatever you are checking. For "A" and "B" it would be "string" and for "C" it would be "object".
You could just transform each value into a string with .toString() function and check the result. If given value is an object - nested, single or even empty - it will return "[object Object]".
Note: It will work even if a given value is string, number, boolean or array.
var obj = {
"A": "Value",
"B": true,
"C": {
"I": "Value",
"II": "Value",
"III": {foo: 'bar'},
"IV": {},
"V": 'foo'
},
"D": 24,
"E": ['hi']
};
for (var key in obj) {
if (obj[key].toString() != "[object Object]" ) {
console.log(obj[key]);
} else {
console.log("It's an object");
}
}Check out this page on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/typeof
It describes the typeof operator.
if(typeof obj === 'object')
{
...
}
else if(typeof obj === 'string')
{
...
}
let test = {
"first": "fetr",
"second": {
"edwr":12,
"ewrgtr":32
}
};
Object.keys(test).forEach(function (key) {
if(typeof test[key] === 'object'){
console.log(key,test[key]);
}
});
This works as of ECMAscript 5 :)