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Comparing performance of: Parent vs Closest

Compare loop performance

Compare loop performance

Compare loop performance

Compare the new ES6 spread operator with the traditional concat() method

flatMap vs filter map

flatMap vs filter map

Compares slice, substr and substring to each other with arbitrary arguments

Compares slice, substr and substring to each other when the start index is 0

Testing Array.push vs spread operator for adding a single element to an array.

Testing Array.push vs spread operator for adding a single element to an array.