What is the spread operator

The spread operator in JavaScript, denoted by three dots (...), allows an iterable such as an array or a string to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected. It provides a concise way to merge arrays or objects, making your code cleaner and more readable.

Keywords: Spread Operator, JavaScript, ES6, Arrays, Objects
The spread operator is a powerful feature in JavaScript that simplifies the process of copying and merging arrays and objects. It enhances code maintainability and readability.
// Example of the spread operator in JavaScript const array1 = [1, 2, 3]; const array2 = [4, 5, 6]; const combinedArray = [...array1, ...array2]; console.log(combinedArray); // Output: [1, 2, 3, 4, 5, 6] const obj1 = { a: 1, b: 2 }; const obj2 = { b: 3, c: 4 }; const combinedObj = { ...obj1, ...obj2 }; console.log(combinedObj); // Output: { a: 1, b: 3, c: 4 }

Keywords: Spread Operator JavaScript ES6 Arrays Objects

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