Oct 20, 2011 · Here's an optimized array comparison function that compares corresponding elements of each array in turn using strict equality and does not do recursive comparison of …

For example, if you only care if the variable is of any specific value, using Array.some() would be the best bet as it basically performs a forEach on any iterable type and returns true at the first …

Aug 10, 2015 · You have to use comparison operators (==, ===, !=, !==). The == and != are type insensitive and performs an implicit cast on the second operand. The === and !== operands …

Comparison and Logical operators are used to test for true or false. Comparison operators are used in logical statements to determine equality or difference between variables or values. …

Sep 16, 2022 · This article taught you how to compare two arrays in JavaScript using two major approaches. These approaches are to convert the array to a string before comparing them, or …

Jan 9, 2025 · In JavaScript, comparing arrays of objects can be more complex than comparing primitive data types. We will discuss different ways to compare arrays of objects effectively, …

Aug 28, 2021 · In this article, we’ll look at how to check variable equality against a list of values in JavaScript. We can use the JavaScript array’s indexOf method to check if a value is included …

Aug 12, 2017 · In real-life projects you usually get lists of values from API calls or database requests, which come as an array or can easily be turned into one. It’s much smarter for you to …

Mar 14, 2021 · You can use the combination of comparing the arrays length values and their elements using every() method as follows: let arrOne = [ 7 , 8 , 9 ]; let arrTwo = [ 7 , 8 , 9 ]; let …

(foobar == foo || foobar == bar) otherwise if you are comparing expressions based only on a single integer, enumerated value, or String object you can use switch. See The switch …