Precedence Rule for JavaScript Operators

• Precedence rules in JavaScript define the order in which operators are evaluated in an expression. In other words, they determine which operator is evaluated first, second, and so on.

Here are the precedence rules for some common JavaScript operators (in order from highest to lowest precedence):

• Grouping parentheses: ()
• Unary operators: +, -, !, ~, typeof, void, delete, and ++
• Exponentiation operator: **
• Multiplicative operators: *, /, and %
• Additive operators: + and -
• Bitwise shift operators: <<, >>, and >>>
• Relational operators: <, <=, >, and >=
• Equality operators: == and !=
• Strict equality operators: === and !==
• Bitwise AND operator: &
• Bitwise XOR operator: ^
• Bitwise OR operator: |
• Logical AND operator: &&
• Logical OR operator: ||
• Conditional (ternary) operator: ?:
• Assignment operators: =, +=, -=, *=, /=, %=, <<=, >>=, >>>=, &=, ^=, and |=

• Operators with higher precedence are evaluated first. If two operators have the same precedence, the expression is evaluated from left to right.

• It's important to understand the precedence rules when writing complex expressions in JavaScript, as incorrect use of these rules can lead to unexpected results. To ensure clarity and readability, it's often a good idea to use parentheses to explicitly specify the order of evaluation in an expression.