JS in the PadLeft, PadRight, the number of bits, auto-complement

    //Method One    functionFillzero (p) {return NewArray (3-(P + "). Length + 1). Join (' 0 ') +p; } Fillzero (6);//Output 006    //method One extension (C # padleft, PadRight)String.prototype.PadLeft =function(len, charstr) {vars = This+ '; return NewArray (Len-s.length + 1). Join (Charstr | | ") +s; } String.prototype.PadRight=function(len, charstr) {vars = This+ '; returnS +NewArray (Len-s.length + 1). Join (Charstr | | ‘‘); }    varp = 6; P.tostring (). PadLeft (3, ' 0 ');//Output 006P.tostring (). PadRight (3, ' 0 ');//Output

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JS in the PadLeft, PadRight, the number of bits, auto-complement