4) 位运算符(Bitwise operators [bɪt'waɪz]) 5) 逻辑运算符(Logical operators [ˈlɑ:dʒɪkl]) 6) 字符串运算符(String operators) 7) 条件(三元)运算符(Conditional operator [kənˈdɪʃənəl) 8) 逗号运算符(Comma operator [ˈkɑ:mə]) 9) 一元运算符(Unary ope...
4.比较运算符(Comparison operators) 5.位运算符(Bitwise operators) 6.字符串运算符(String operators) 7. 逗号运算符 (Comma operator) 8.关系运算符(Relational operator) 9.一元运算符(Unary operators) 10. 条件(三元)运算符 (Conditional operator) 算术运算符 (Arithmetic operators) 算术表达式支持基本的数...
Example 1: Bitwise AND Operator // bitwise AND operator example let a = 12; let b = 25; result = a & b; console.log(result); // 8 Run Code In the above program, The binary value of 12 is 00000000000000000000000000001100 The binary value of 25 is 00000000000000000000000000011001. When...
4) 位运算符(Bitwise operators [bɪt'waɪz]) 5) 逻辑运算符(Logical operators [ˈlɑ:dʒɪkl]) 6) 字符串运算符(String operators) 7) 条件(三元)运算符(Conditional operator [kənˈdɪʃənəl) 8) 逗号运算符(Comma operator [ˈkɑ:mə]) 9) 一元运算符(Unary ope...
测试1:Math.floor and Math.ceil vs bitwise operations 很遗憾,位运算比 Math.floor 还慢。 测试2:Math.floor and Math.ceil vs bitwise operations 对比结果显示,Math.floor 是最快的。 测试3:Math.floor vs Math.round vs parseInt vs Bitwise Math.floor 和 Math.round 都很快,但是 parseInt 确实里面最慢...
Return the result of applying the bitwise operator @ to lnum and rnum. The result is a signed 32 bit integer. 需要注意的是第5和第6步,按照ES标准,两个需要运算的值会被先转为有符号的32位整型。所以超过32位的整数会被截断,而小数部分则会被直接舍弃。
7个逐位Bitwise:逐位与& 逐位或| 逐位非~ 逐位异或Bitwise XOR^ 【2值相同返0,否则1 Left Shift左移<< 带符号右移>> 0补足右移>>> 【逐位运算符 将各进制的操作数转换为32位的二进制数,并逐位/按位进行操作后返回十进制数。 【逐位运算符又分为:逐位逻辑运算符、逐位位移运算符。
JavaScript Bitwise Operators Bit operators work on 32 bits numbers. OperatorDescriptionExampleSame asResultDecimal &AND5 & 10101 & 000100011 |OR5 | 10101 | 000101015 ~NOT~ 5~0101101010 ^XOR5 ^ 10101 ^ 000101004 <<left shift5 << 10101 << 1101010 ...
JavaScript Bitwise AND When a bitwise AND is performed on a pair of bits, it returns 1 if both bits are 1. One bit example: OperationResult 0 & 00 0 & 10 1 & 00 1 & 11 4 bits example: OperationResult 1111 & 00000000 1111 & 00010001 ...
Bitwise Operators Bitwise operators perform an operation on the bitwise (0,1) representation of their arguments, rather than as decimal, hexadecimal, or octal numbers. For example, the decimal number eight has a binary representation of 1000. Bitwise operators do their operations on such binary rep...