Both object iterations mentioned are slow. Use native for loop

[swanidhi]

// bad
for (var prop in obj) {
if (obj.hasOwnProperty(prop))
console.log(prop);
}

// bad
Object.keys(obj).forEach(prop => console.log(prop));

//good -- fastest
keys = Object.keys(obj);
for (var i = 0, l = keys.length; i < l; i++) {
result = result + obj[keys[i]];
}

[misbeliever]

Hi @swanidhi, did you read the guidelines?

JavaScript

Performance

  Favor readability, correctness and expressiveness over performance. 

and forEach variation is most readable at most cases;

[swanidhi]

Agreed. However native for loop is not very bad to look at either. And the
performance difference is considerable. Hence suggested.

Sent from my Nexus 5
On Aug 10, 2015 12:54 PM, "misbeliever" notifications@github.com wrote:

Hi @swanidhi https://github.com/swanidhi, did you read the guidelines?
JavaScript Performance

Favor readability, correctness and expressiveness over performance.

and forEach variation is most readable at most cases;

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Reply to this email directly or view it on GitHub
#752 (comment)
.

[bendc]

What @misbeliever said.