In JavaScript, arrays are a special type of object used to store multiple values in a single variable. An array can hold a collection of items, allowing for easy access and manipulation of these items using indices. Arrays are dynamic, meaning they can grow and shrink in size, and they can contain elements of any data type, including numbers, strings, objects, and even other arrays.
Here’s an example of how to create and use arrays in JavaScript:
// Creating an array
const fruits = ['Apple', 'Banana', 'Cherry'];
// Accessing an element
console.log(fruits[0]); // Output: Apple
// Adding an element
fruits.push('Date');
// Removing an element
fruits.pop();
// Looping through the array
fruits.forEach(fruit => {
console.log(fruit);
});
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?