Run results for: key creation

Test name	Executions per second
✓ string only	1,032,595 Ops/sec
template literal string with join	944,695 Ops/sec
template literal string with arrays	942,248 Ops/sec
string only + (toString)	931,236 Ops/sec
Join x3	907,958 Ops/sec
Join x1 with arrays	886,528 Ops/sec
Join x1 with string	710,499 Ops/sec

Join x3

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let a = [];
a.push (a1.join ());
a.push (a2.join ());
a.push (a3.join ());
let key = a.join ("|");

Join x1 with string

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let a = [];
for (let i = 0 ; i < 9 ; i++) a.push (a1[i], ",");
a.push (a1[9], "|");
for (let i = 0 ; i < 9 ; i++) a.push (a2[i], ",");
a.push (a2[9], "|");
for (let i = 0 ; i < 9 ; i++) a.push (a3[i], ",");
a.push (a3[9]);
let key = a.join ("");

Join x1 with arrays

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let a = [];
a.push (a1);
a.push (a2);
a.push (a3);
let key = a.join ("|");

string only

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let key = "";
for (let i = 0 ; i < 9 ; i++) key += a1[i] + ",";
key += a1[9] + "|";
for (let i = 0 ; i < 9 ; i++) key += a2[i] + ",";
key += a2[9] + "|";
for (let i = 0 ; i < 9 ; i++) key += a3[i] + ",";
key += a3[9];

template literal string with arrays

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let key = `${a1}|${a2}|${a3}`;

template literal string with join

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let key = `${a1.join (",")}|${a2.join (",")}|${a3.join (",")}`;

string only + (toString)

let a1 = [];
for (let i = 0 ; i < 10 ; i++)
    a1.push (Math.floor (Math.random () * 1000));
let a2 = [];
for (let i = 0 ; i < 10 ; i++)
    a2.push (Math.floor (Math.random () * 1000));
let a3 = [];
for (let i = 0 ; i < 10 ; i++)
    a3.push (Math.floor (Math.random () * 1000));

let key = a1 + "|" + a2 + "|" + a3;