JavaScript operators are used to assign values, compare values, perform arithmetic operations, and more.JavaScript Arithmetic OperatorsArithmetic operators are used to perform arithmetic between variables and/or values.Given that y = 5, the table below explains the arithmetic operators: ...
JavaScript String OperatorsThe + operator, and the += operator can also be used to concatenate (add) strings.Given that t1 = "Good ", t2 = "Morning", and t3 = "", the table below explains the operators:OperExamplet1t2t3Try it + t3 = t1 + t2 "Good " "Morning" "Good Morning" ...
JavaScript Arithmetic OperatorsArithmetic operators perform arithmetic on numbers (literals or variables).OperatorDescription + Addition - Subtraction * Multiplication ** Exponentiation (ES2016) / Division % Modulus (Remainder) ++ Increment -- Decrement...
JavaScript Assignment Operators Assignment operators assign values to JavaScript variables. OperatorExampleSame As =x = yx = y +=x += yx = x + y -=x -= yx = x - y *=x *= yx = x * y /=x /= yx = x / y %=x %= yx = x % y ...
其详细介绍请参考:W3Schools: JavaScript Operators == 与 === 的区别 其中: == 操作符用于比较两个值(可以是表达式)是否相等 === 操作符比 == 更加严格,它还会检测两个值的类型是否相同 示例: varn = 123;vars = "123"; alert(n== s);//truealert(n === s);//falsealert(n === 123);//...
https://www.w3schools.com/jsref/jsref_obj_regexp.asp backslash You should use a regular expression literal (/.../) instead of a string literal ('...'or"...") in the call toreplace. Strings have their own interpretation of backslashes that kicks in before the regular expression constru...
Reverse Polish notation (RPN), also known as reverse Lukasiewicz notation, Polish postfix notation or simply postfix notation, is a mathematical notation in which operators follow their operands, in contrast to Polish notation (PN), in which operators precede their operands. It does not need any ...
Precedence of operators The operators have a precedence which sometimes matches what we learned in school. When operators have equal precedence, they proceed left to right. xx = 24 / 6 * 5 will produce 20. But xx = 1 + 2 * 3 will produce 7, not 9, because the multiplication has high...
Notes Equality operators, Default values of parameters Dmitri Pavlutin equality operator, undefined variables hoisting, variables lifecycle declare functions, 'this' keyword three dots array creation, object literals well-known symbols small and plain functions unicode Other The Evolution of JavaScript...
JavaScript是一种广泛应用于网页开发的脚本语言,它支持多种编程范式,包括函数式编程、面向对象编程和命令式编程。在JavaScript中,我们可以使用加法操作符(+)来进行两数相加。 加法操作符 在JavaScript中,加法操作符(+)有两种使用方式:算术相加和字符串拼接。