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const array = [1, 2, 3, 4, 5, 6, 7]; console.log(array.includes(3)); //includes() determines whether an array includes a certain value among its entries. console.log(array.some(x => x === 3)); //some() tests if at least one element in the array passes the test implemented by the provided function.
The includes () method returns true if an array contains a specified value. The includes () method returns false if the value is not found. The includes () method is case sensitive.
15 lip 2009 · If any element matches the value, the anyMatch() method returns true, indicating that the array contains the value. If no element matches the value, the anyMatch() method returns false , indicating that the array does not contain the value.
Learn how to use the array.includes() method and the array.some() method with a helper function to check if an array contains a primitive value or an object in JavaScript. See examples, explanations and limitations of each method.
8 lut 2024 · Learn how to use the includes() method to check if an array contains a certain value. See syntax, parameters, return value, description, examples, and browser compatibility of this method.
28 cze 2022 · Learn how to use the includes() method in JavaScript to check if an item is in an array or a substring is in a string. See syntax, examples and explanations with code snippets.
8 lip 2019 · There are two common ways to check if a JavaScript array contains a value: `includes()` and `indexOf()`. This tutorial shows you how to use both, and why you would use one versus the other.
