I did this code to sum the total amount of properties in a nested object but it doesn't works well, can you help me please ?
var obj = {
a: {
a1: 10,
a2: 'Emily',
a3: {E: 'm', i: 'l', y: {a: true}}
},
b: 2,
c: [1, {a: 1}, 'Emily']
}
var i = 0
var countProps = function (obj) {
for (const key in obj) {
if ( obj[key].hasOwnProperty(key) )
i++;
}
if ( typeof obj[key] === 'object' ) {
i++;
countProps( obj[key] );
}
}
return i;
};
See snippet.
if ( obj[key].hasOwnProperty(key) ) is the part that's off, you're looking at the child and checking if it has the same key as well.
var obj = {
a: {
a1: 10,
a2: 'Emily',
a3: {E: 'm', i: 'l', y: {a: true}}
},
b: 2,
c: [1, {a: 1}, 'Emily']
}
let i = 0;
var countProps = function (obj) {
for (const key in obj) {
if ( typeof obj[key] === 'object' ) {
i++;
countProps( obj[key] );
} else {
i++;
}
}
return i;
};
console.log(countProps(obj));I just solved this problem, here is the answer:)
var i = 0
var countProps = function (obj) {
for (const key in obj) {
if ( obj[key] instanceof Object && !Array.isArray(obj[key]) ) {
i++;
countProps( obj[key] );
} else {
i++;
}
}
return i;
};