Tests the speed of merging an array
test
Port from jsperf(https://jsperf.com/sorting-algorithms/58)
Splice Slice
Compare the new ES6 spread operator with the traditional concat() method and push
New benchmark Your benchmarks
Source code: GitHub/MeasureThat.net
Report issues: MeasureThat.net/Issues
Based on: Benchmark.js (v2.1.1)
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