6按位或 (|)从左到右… | … 5逻辑与 (&&)从左到右… && … 4逻辑或 (||)从左到右… || … 空值合并 (??)从左到右… ?? … 3条件(三元)运算符从右到左… ? … : … 2赋值从右到左… = … … += … … -= … … **= … ...
Table Operator precedence determines the order in which operators are evaluated. Operators with higher precedence are evaluated first. A common example: 3 + 4 * 5 // returns 23 The multiplication operator ("*") has higher precedence than the addition operator ("+") and thus will be evalua...
Operator precedence [Translate] Property accessors [Translate] Spread syntax [Translate] class expression [Translate] delete operator [Translate] function expression [Translate] function* expression [Translate] in operator [Translate] instanceof [Translate] new operator [Translate] new.target [Translate] ...
operatorname operatorprecedence OPFS OPQRTUVXYZ opsz optgroups Opti Optim optimizability optimizable optin optio optionalchainingoperator opto Opua orci Orendorff orgunit orientationchange originalcompany ormat ornare ornm Ortes orya oscpu oscuro osfile osma Osmani Osmani's Osmanya Österreich otation ...
https://developer.mozilla.org/en-us/web/javascript/reference/operators/operator_precedence They're usually used in math expressions in the JS docs, for example: https://developer.mozilla.org/en-US/docs/web/javascript/reference/global_objects/bigint/asuintn#returns https://developer.mozilla.org/...
在一个表达式中进行多个运算时,每一部分都会按预先确定的顺序进行计算求解,这个顺序被称为运算符优先级。括号可改变优先级的顺序,强制优先处理表达式的某部分。括号内的操作总是比括号外的操作先被执行。但是在括号内,仍保持正常的运算符优先级。 当表达式有多种运算符时,先处理算术运算符,接着处理比较运算符,然后...
在一个表达式中进行多个运算时,每一部分都会按预先确定的顺序进行计算求解,这个顺序被称为运算符优先级。括号可改变优先级的顺序,强制优先处理表达式的某部分。括号内的操作总是比括号外的操作先被执行。但是在括号内,仍保持正常的运算符优先级。 当表达式有多种运算符时,先处理算术运算符,接着处理比较运算符,然后...
Operator precedence Property accessors Spread syntax class expression delete operator function expression function* expression in operator instanceof new operator new.target super this typeof void operator yield yield* Statements & declarations Legacy generator function block break class const continue debugg...
Grouping operator Legacy generator function expression Logical Operators Object initializer Operator precedence Property accessors Spread syntax class expression delete operator function expression function* expression in operator instanceof new operator new.target super this typeof void operator yield yield* Sta...
in_operator_no_object index.md index.md invalid_array_length index.md invalid_assignment_left-hand_side index.md invalid_const_assignment index.md invalid_date index.md invalid_for-in_initializer index.md invalid_for-of_initializer index.md invalid_right_hand_side_instanceof_operand ...