Monthly Archives: July 2022

To check if two arrays have same elements in JavaScript, you can use the following methods: 1. Use the every() method and length property if you care about the order…

To check if an array doesn't include a value in JavaScript, you can use the some() method. The some() method returns true if at least one element in the array…

To sort an array without mutating in JavaScript, you can use any of these methods - Use the spread operator to create a shallow copy of the array before sorting.Use…

To check if an array index exists in JavaScript, use any of the following methods - Use the arr[index] syntax to check if an index exists.Use the optional chaining operator…

To find first array element matching a condition in JavaScript, you can use the find() method. This method executes the callback function once for each element in the array until…

The length of an array is the number of elements it contains. To get the length of an array in JavaScript, use the Array.length property. This property is useful for…