In this method, we'll first test if the lengths of the two arrays are comparable. We can also decide to create a reusable function that helps us compare any two arrays we pass into it: const compareArrays = (a, b) => ) let array1 = Ĭonsole.log(JSON.stringify(array1) = JSON.stringify(array2)) //true You can then compare the two JSON strings. This method allows you to serialize each array by converting the array to a JSON string. Note: Both methods are different, as you can see below: let array = Ĭonsole.log(JSON.stringify(array)) //""Ĭonsole.log(array.toString()) //"11,22,33" toString() method to return your array as a string. There are two different methods that you can use: you can decide to convert your array to JSON text using the JSON.stringify() method, or you can use the. How to Compare Two Arrays by Converting to StringsĪ common and quite straightforward approach you can use to compare two arrays is first to convert these arrays to string form. In this article, you will learn the various ways you can compare two arrays in JavaScript to see if they are similar or not. Instead, you want to be able to compare both arrays directly and return just one boolean value without having to check each element one by one. Objects are not compared based on their values but based on the references of the variables: console.log(array1 = array1) //trueĬonsole.log(array1 = array1) //trueīut this is not what you want. This happens because JavaScript arrays have a type of Object: let arrayType = typeof(array1) But unfortunately, you cannot use them in this case. Really, this shouldn't be difficult, as you'd think we could easily use either the loose equality (double equals - =) or the strict equality (triple equals - =). Once you are done with comparison operators do have a look at logical operators.When handling logic with JavaScript, you might need to compare two arrays to see if they are equal or not. As a next step do spend some quality time practicing the operators understand how they differ from each other and also try breaking them. In this tutorial, we covered the JavaScript not equal and the other comparison operators.
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