Benchmark: Array concat vs spread operator vs push vs splice vs for-each push vs for-of push

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.concat(params);
spread operator
var params = [ "hello", true, 7 ] var a = [ 1, 2 ]; var b = [ ...a, ...params ];
Push
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.push(...params);
Splice
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; var b = a.splice(params.length, 0, ...params);
Push for-each
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; params.forEach(v => a.push(v));
Push for-of
var params = [ "hello", true, 7 ]; var a = [ 1, 2 ]; for(v of params) a.push(v);

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Array concat vs spread operator vs push vs splice vs for-each push vs for-of push (version: 0)