JavaScriptの剰余代入(%=)演算子

JavaScript Remainder Assignment(%=) Operator - GeeksforGeeks Courses Tutorials Interview Prep JS Tutorial Web Tutorial A to Z Guide Projects OOP DOM Set Map Math Number Boolean Exercise JavaScript Remainder Assignment(%=) Operator Last Updated : 23 Jul, 2025 JavaScript remainder assignment operator ( %= ) assigns the remainder to the variable after dividing a variable by the value of the right operand. Syntax: Operator: x %= y Meaning: x = x % y Below example illustrate the Remainder assignment(%=) Operator in JavaScript: Example 1: The following example demonstrates if the given number is divisible by 4 or if it's an even or odd number. JavaScript let num = 16 ; // Test if its divisible by 4 if ( num % 4 == 0 ) { console . log ( true ); } // Test for even number if ( num % 2 == 0 ) { console . log ( true ); } else { console . log ( false ); } // Test for odd number if ( ! ( num % 2 == 0 )) { console . log ( true ); } else { console . log ( false ); }; Output: true true false Example 2: The following example demonstrates if the given number is divisible by 2, 0, and world. JavaScript let gfg = 3 ; console . log (( gfg %= 2 )); console . log (( gfg %= 0 )); console . log (( gfg %= "world" )); Output: 1 Nan Nan We have a complete list of Javascript Assignment Operators, to check those please go through the Javascript Assignment Operators List article. Comment Article Tags: Article Tags: JavaScript Web Technologies javascript-operators Explore JavaScript Basics Introduction 3 min read Variables 5 min read Operators 4 min read Control Statements 4 min read Array & String Arrays 7 min read Array Methods 7 min read String 5 min read String Methods 9 min read Function & Object Functions 4 min read Function Expression 3 min read Function Overloading 4 min read Objects 4 min read Constructors 4 min read OOP OOP 3 min read Classes & Objects 4 min read Access Modifiers 5 min read Constructor 7 min read Asynchronous JavaScript Asynchronous 2 min read Callbacks 4 min read Promises 4 min read Event Loop 3 min read Async Await Fuction 3 min read Exception Handling Error and Exceptional Handling 5 min read Errors Throw & Try to Catch 2 min read Custom Errors 2 min read TypeError Invalid Array.prototype.sort argument 1 min read DOM DOM 8 min read DOM Elements 3 min read Custom Events 4 min read Addeventlistener 9 min read Advanced Topics Closure 4 min read Hoisting 6 min read Scope 3 min read Higher Order Functions 7 min read Debugging 3 min read