Performance test of JavaScript iterations

We have few techniques to iterate over the arrays, objects and strings.

Tested the each technique with 1 Million iterations and executed the test.js file for 5 times using the for i in {1..5}; node test.js; command.

Results

• While loop - 1.4ms
• Do while loop - 0.8ms
• For loop - 0.8ms
• For Of loop - 9.5ms
• For In loop - 137ms
• Map method - 8.5ms
• Filter method - 7.2ms
• Reduce method - 6.4ms
• Sort method - 11.7ms
• Every method - 7.2ms
• Some method - 6.8ms
• Chaining methods - 16.3ms