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Test the efficiency of the array push and Unshift methods

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<!DOCTYPE HTML><HTML>    <Head>        <title>Test the efficiency of the array push and Unshift methods</title>    </Head>        <Body>    </Body>        <Scripttype= "Text/javascript">            varStartTime= 0; /*Start Time*/            varEndTime= 0; /*End Time*/            vararr= []; /*Test Array*/            varN= 50000; /*Number of Inserts*/            varI= 0; /*Cyclic cardinality*/Calculate ("Unshift"); /*Calculate method Test*/Calculate ("Push"); /*Push Method Test*/                        functionCalculate (method) {i=0; Arr= [];  while(i!=N) {                    if(i==0) {StartTime= NewDate (); /*Start Time Acquisition*/} Arr[method] (i); I++;                }; EndTime= NewDate (); /*End Time Get*/Console.log (Method+" : "+(Endtime.gettime ()-starttime.gettime ())+"milliseconds"); /*Time Difference*/            }    </Script></HTML>

Test the efficiency of the array push and Unshift methods

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