About Lesson
In this JavaScript lesson we are going to talk about JavaScript Include(), so it returns true if an array includes a value, if not returns false, and it is a feature on JavaScript ES7.
So now let’s create a simple example, if you see in this example we have create an array of numbers and after that we are using include function to check if we have the 3 number in our array, if you run the code you will see that we are receiving true, because the 3 number is available in our array.
|
1 2 |
let number =[1,2,3,4,5,6,7] console.log(number.includes(3)); |
Also you can use strings, in this example if you see we have an array of names, and we want to use include to find a name if we have in the array, for example we will receive true.
|
1 2 3 |
let names = ["Parwiz", "Bob", "Karim", "John"] console.log(names.includes("Parwiz")); |