Created
February 27, 2019 12:10
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Performance of Smi vs. floating-point number representation
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function copyAndIncrement(arr) { | |
const copy = arr.slice(); | |
copy[0] += 1; | |
return copy; | |
} | |
function spoil() { | |
const objThatSpoilsEverything = {}; | |
objThatSpoilsEverything.value = 1.5; | |
} | |
function run() { | |
spoil(); | |
const obj = {}; | |
obj.value = 1; | |
let arr = []; | |
for (let i = 0; i < 100; ++i) { | |
arr.push(obj.value); | |
} | |
for (let i = 0; i < 10000000; ++i) { | |
arr = copyAndIncrement(arr); | |
} | |
} | |
run(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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function copyAndIncrement(arr) { | |
const copy = arr.slice(); | |
copy[0] += 1; | |
return copy; | |
} | |
function run() { | |
const obj = {}; | |
obj.value = 1; | |
let arr = []; | |
for (let i = 0; i < 100; ++i) { | |
arr.push(obj.value); | |
} | |
for (let i = 0; i < 10000000; ++i) { | |
arr = copyAndIncrement(arr); | |
} | |
} | |
run(); |
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@poeschko Can you add the contents of the
examples.bat
file from the command line example: