javascript--operators (~, &, |, ^, <<, >>)

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1<script type= "Text/javascript" >2         //JavaScript Operators3         //1, bitwise NOT ~4         varnum1=25;//5         varNUM2=~NUM1;//6 alert (num2)7 8         varnum3=10;9         varnum4=~num3;Ten alert (NUM4) One  A         varnum5=99; -         varnum6=~NUM5; - alert (NUM6) the  -         //Note: I believe you have also seen the implementation of the bitwise ~ (not) principle: -         //take NUM1, num2 as the explanation object -         //First step: convert NUM1 to binary first +         //Step two: Get num1 binary Inverse code assignment to num2 -         //Step Three: Convert the num2 into decimal digits +         //A simple explanation: minus 1 of the number of operands A  at  -         //2, Bitwise AND & (and) -         varRESULT=25 & 3; -alert (result);//1 -         //The explanation is to convert two numbers into binary numbers, according to certain rules: -         //Bit result of the second number of bits of the first numeric value in         //1 1 1 -         //1 0 0 to         //0 1 0 +         //0 0 0 -  the         //In short, the corresponding bit of the bitwise operator is 1 o'clock returns 1, and any one is 0 returns 0. *         //and then convert the resulting binary into decimal digits. $       //25=0000 0000 0000 0000 0000 0000 0001 1001Panax Notoginseng       //3= 0000 0000 0000 0000 0000 0000 0000 0011 -       //  ------------------------------------------ the       //and=0000 0000 0000 0000 0000 0000 0000 0001 +  A  the         //3, bitwise OR | (OR) +         varresult=25 | 3; -alert (result);// - $         //The explanation is to convert two numbers into binary numbers, according to certain rules: $         //Bit result of the second number of bits of the first numeric value -         //1 1 1 -         //1 0 1 the         //0 1 1 -         //0 0 0Wuyi  the         //in short, a bitwise operator corresponds to a bit that has a 1 return of 1, and returns 0 only if two bits are 0. -         //and then convert the resulting binary into decimal digits. Wu  -         //25=0000 0000 0000 0000 0000 0000 0001 1001 About         //3= 0000 0000 0000 0000 0000 0000 0000 0011 $         //  ------------------------------------------ -         //or=0000 0000 0000 0000 0000 0000 0001 1011 -  -  A         //4, Bitwise XOR or ^ (XOR) +         varresult= 25 ^ 3; thealert (result);// - -         //The explanation is to convert two numbers into binary numbers, according to certain rules: $         //Bit result of the second number of bits of the first numeric value the         //1 1 0 the         //1 0 1 the         //0 1 1 the         //0 0 0 -         //in short, this operator (^) returns 1 only one 1 o'clock on the corresponding bit of two values, otherwise returns 0. in         //and then convert the resulting binary into decimal digits. the  the         //25=0000 0000 0000 0000 0000 0000 0001 1001 About         //3= 0000 0000 0000 0000 0000 0000 0000 0011 the         //  ------------------------------------------ the         //xor=0000 0000 0000 0000 0000 0000 0001 1010 the  +  -         //5. Shift Left (<<) the         varoldnum=2;Bayi         varNewnum=oldnum << 5; the alert (newnum) the         //Note, move 2 (binary digit 10) to the left 5 bits result is 1000000 (binary) equals -         //Note that the left shift does not affect the sign bit of the operator, such as moving 2 to the left 5 bits is -64 -         //2=0000 0000 0000 0000 0000 0000 0000 0010 the        //64=0000 0000 0000 0000 0000 0000 010 00000 the  the  the         //6. Sign right Shift (>>) -         varOldnum=64; the         varNewnum=oldnum >> 5; the        //64=0000 0000 0000 0000 0000 0000 010 00000 the         //2=0000 0000 0000 0000 0000 0000 0000 001094 alert (newnum) the</script>

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javascript--operators (~, &, |, ^, <<, >>)