- Array. prototype. indexOf () - JavaScript | MDN
The indexOf() method of Array instances returns the first index at which a given element can be found in the array, or -1 if it is not present
- JavaScript String indexOf () Method - W3Schools
indexOf() is an ECMAScript1 (JavaScript 1997) feature It is supported in all browsers: Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more
- JavaScript Array indexOf () Method
This tutorial shows you how to use the JavaScript Array indexOf () method to find the first index of the element
- JavaScript Array indexOf () Method - GeeksforGeeks
This code demonstrates the use of the indexOf() method to find the index of a specific element (2) in an array (A) It returns the index of the first occurrence of the element in the array (1 in this case)
- JavaScript Array indexOf () - Programiz
indexOf () Return Value Returns the first index of the element in the array if it is present at least once Returns -1 if the element is not found in the array Note: indexOf() compares searchElement to elements of the Array using strict equality (similar to triple-equals operator or ===)
- How to Use indexOf() in JavaScript – Complete Guide with Examples
Learn how to use indexOf () in JavaScript with syntax, examples, best practices, and comparisons with includes () Perfect for beginners Tagged with javascript, webdev, beginners, programming
- indexOf · WebPlatform Docs
Returns the index of the first occurrence of a value in an array
- Exploring the indexOf Method for Strings and Arrays in JavaScript
When you need to find an element in an array or a string, indexOf() is one of your best friends Code first, explanation later: Module: findSpencer js In its simplest version, the indexOf method takes one argument which is the element we are trying to find
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