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Created January 19, 2017 01:21
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Benchmarking for loops
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results
Now using node v4.7.2 (npm v2.15.11)
// v8 4.5.103.43 (Node.js 4.7.2)
forVar_______: 2ms
forLet_______: 13ms
forOfVar_____: 66ms
forOfLetConst: 64ms
forEachVar___: 15ms
forEachLet___: 21ms
Now using node v6.9.4 (npm v3.10.10)
// v8 5.1.281.89 (Node.js 6.9.4)
forVar_______: 0.877ms
forLet_______: 4.903ms
forOfVar_____: 29.475ms
forOfLetConst: 30.805ms
forEachVar___: 13.374ms
forEachLet___: 13.863ms
Now using node v7.4.0 (npm v4.1.1)
// v8 5.4.500.45 (Node.js 7.4.0)
forVar_______: 1.021ms
forLet_______: 15.546ms
forOfVar_____: 15.307ms
forOfLetConst: 15.622ms
forEachVar___: 15.710ms
forEachLet___: 23.886ms
// v8 5.7.114 (Node.js 8.0.0-pre)
forVar_______: 0.984ms
forLet_______: 17.082ms
forOfVar_____: 2.610ms
forOfLetConst: 2.840ms
forEachVar___: 17.260ms
forEachLet___: 23.416ms
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chicoxyzzy commented Jan 19, 2017 •
edited

based on @vsemozhetbyt's tests from
https://gist.github.com/vsemozhetbyt/396eb4b7713accf60ead2fe164e47306

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chicoxyzzy commented Jan 19, 2017 •
edited

Test Node.js 4.7.2 LTS
v8 4.5.103.43		 Node.js 6.9.4 LTS
v8 5.1.281.89		 Node.js 7.4.0 Stable
v8 5.4.500.45		 Node.js 8.0.0-pre
v8 5.7.114
forVar 2 ms 0.877 ms 1.021 ms 0.984 ms
forLet 13 ms 4.903 ms 15.546 ms 17.082 ms
forOfVar 66 ms 29.475 ms 15.307 ms 2.610 ms
forOfLetConst 64 ms 30.805 ms 15.622 ms 2.840 ms
forEachVar 15 ms 13.374 ms 15.710 ms 17.260 ms
forEachLet 21 ms 13.863 ms 23.886 ms 23.416 ms

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