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Run results for:
lookup table vs switch
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<iframe src="https://measurethat.net/Embed?id=612743" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36
Browser:
Chrome 137
Operating system:
Mac OS X 10.15.7
Device Platform:
Desktop
Date tested:
one year ago
switch
5.2M/s
lookup
1.2M/s
View exact numbers
Test name
Executions per second
✓
switch
5,242,184 Ops/sec
lookup
1,156,085 Ops/sec
Tests:
lookup
const SOURCE = [ 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', ]; let a; var LOOKUP = { "ahello": function(v) { a = (v + "\n\n" + "hi"); }, "ahi": function(v) { a = (v + "\n\n" + "hello"); }, "abye": function(v) { a = (v + "\n\n" + "no"); }, "adie": function(v) { a = (v + "\n\n" + "you shot me"); }, "bhello": function(v) { a = (v + "\n\n" + "hi"); }, "bhi": function(v) { a = (v + "\n\n" + "hello"); }, "bbye": function(v) { a = (v + "\n\n" + "no"); }, "bdie": function(v) { a = (v + "\n\n" + "you shot me"); }, "hello": function(v) { a = (v + "\n\n" + "hi"); }, "hi": function(v) { a = (v + "\n\n" + "hello"); }, "bye": function(v) { a = (v + "\n\n" + "no"); }, "die": function(v) { a = (v + "\n\n" + "you shot me"); }, }; for(let value of SOURCE){ LOOKUP[value](value)}
switch
const SOURCE = [ 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', 'hello', 'hi', 'bye', 'die', 'die', 'bye', 'hi', 'hello', ]; let a; for(let value of SOURCE){ switch (value) { case "ahello": a = (value + "\n\n" + "hi"); case "ahi": a = (value + "\n\n" + "hello"); case "abye": a = (value + "\n\n" + "no"); case "adie": a = (value + "\n\n" + "you shot me"); case "bhello": a = (value + "\n\n" + "hi"); case "bhi": a = (value + "\n\n" + "hello"); case "bbye": a = (value + "\n\n" + "no"); case "bdie": a = (value + "\n\n" + "you shot me"); case "hello": a = (value + "\n\n" + "hi"); case "hi": a = (value + "\n\n" + "hello"); case "bye": a =(value + "\n\n" + "no"); case "die": a = (value + "\n\n" + "you shot me"); } }