##reverse-benchmark

Compares performance among different implementations of string reverse in varying languages. For each language provided, the program should be called with the number of iterations and the method version to use for the benchmark. The program outputs the number of milliseconds it took to run the iterations.

Time measurements and iterations are taken within each program (as opposed to by a driver script) to avoid the overhead of program startup (e.g., JVM).

All programs use the standard Lorem Ipsum paragraph text as input.

Implementations in other languages are welcome!

###Method Versions

####Version 1: Array manipulation

function string reverse(input) {
    array1 = split input into characters
    array2 = reverse array1
    return the joined elements of array2 as a string
}

####Version 2: String concatentation

function string reverse(input) {
    output = an empty string
    for char = each character of input from end to beginning
        concatenate char to output
    return output
}

###Language Benchmarks

####Java

javac Reverse.java
java Reverse <iterations> <version>

####Node/JavaScript

node ./reverse.js <iterations> <version>

####Perl

perl ./reverse.pl <iterations> <version>