Run results for: Spread with map vs Array.from()

Test name	Executions per second
✓ for loop pre-allocate cached length	151,887 Ops/sec
for loop pre-allocate	133,359 Ops/sec
for loop push	115,566 Ops/sec
Array.from with map	49,263 Ops/sec
Spread with map	48,475 Ops/sec
Array.from with second parameter	46,116 Ops/sec

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Tests:

Spread with map
const result = ([...nodeList]).map((node) => node.id);
Array.from with map
const result = Array.from(nodeList).map((node) => node.id);
Array.from with second parameter
const result = Array.from(nodeList, (node) => node.id);
for loop push
const result = []; for (let i = 0; i < nodeList.length; i++) { result.push(nodeList[i].id); }
for loop pre-allocate
const result = new Array(nodeList.length); for (let i = 0; i < nodeList.length; i++) { result[i] = nodeList[i].id; }
for loop pre-allocate cached length
const length = nodeList.length; const result = new Array(length); for (let i = 0; i < length; i++) { result[i] = nodeList[i].id; }

Run results for: Spread with map vs Array.from()

Spread with map

Array.from with map

Array.from with second parameter

for loop push

for loop pre-allocate

for loop pre-allocate cached length