() => this.something() vs this.something.bind(this)

compares eval and new Function with a longer calculation than original to reduce impact of function calls

var x = _.reduce(users, function (o) { return o.age < 40; }) console.log(x);

test

Compare the new ES6 spread operator with the traditional concat() method

Compare using Array.from vs Spread syntax to create an array with a fixed length and then map over it

Comparing speed of getting element by id with jQuery vs Vanilla JS

Benchmark using Fly Json ODM in browser for 1million json array

primitive equality test

lodash vs es6

Testing whether Push vs Slice to add an element to the list has a significant performance difference.

Benchmark using Fly Json ODM for WHERE in browser

eateata