- 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 Element to locate in the array Zero-based index at which to start searching, converted to an integer
- 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 () - 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 ===)
- JavaScript String indexOf () Method
In this tutorial, you'll learn how to use the JavaScript String indexOf () method to find the index of a substring within a string
- JavaScript | Arrays | . indexOf() | Codecademy
The indexOf() method returns the first index at which a specified element can be found in an array, or -1 if the element is not present This method searches the array from left to right and uses strict equality comparison to match elements
- JavaScript Array indexOf () Method
This tutorial shows you how to use the JavaScript Array indexOf () method to find the first index of the element
- String. prototype. indexOf () - JavaScript | MDN
The indexOf() method of String values searches this string and returns the index of the first occurrence of the specified substring It takes an optional starting position and returns the first occurrence of the specified substring at an index greater than or equal to the specified number
- What to Do When a Website Shows Index of - Host4Geeks LLC
Seeing the dreaded “Index of ” on your website can be worrying but is usually fixable Confirm index and home page files exist, verify configurations and settings, restore from backups, or contact your host for assistance
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