How to print the key and value of an object?

Question

I have an object like this

var data = {'name':'test','rollnum':'3','class':'10'};

I want to console it by iterating through it like,

 name:test
 rollnum:3
 class:10

Can anyone please help me.Thanks.

@jax No, this is literally one of the first questions on SO. Don't know why people answer it when they can flag or close it. — Michelangelo, Jun 01 '17 at 11:28

score 3 · Answer 1 · answered Jun 01 '17 at 11:24

3

This will work for values that are Strings or Numbers.

var data = {'name':'test','rollnum':'3','class':'10'};

var i;
for (i in data) {
    console.log(i + ":" + data[i]);
}

answered Jun 01 '17 at 11:24

Halcyon

score 0 · Answer 2 · answered Jun 01 '17 at 11:26

0

With modern JavaScript syntax, this becomes quite elegant:

const data = {'name':'test','rollnum':'3','class':'10'};

Object.entries(data).forEach(([key, val]) => console.log(`${key}: ${val}`));

answered Jun 01 '17 at 11:26

Kris Selbekk

score 0 · Answer 3 · answered Jun 01 '17 at 11:30

0

for(i in data) {
    console.log (i,':', data[i])
}

answered Jun 01 '17 at 11:30

Chris Stubbs

3 Answers3