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There is a String object method in JavaScript that allows us to determine which character is at a given index in a string. This article will tell you about this method and show you how to use it.
For this method, we turn to our primitive types in JavaScript. What are these guys? What does primitive also mean ?
Primitive types, or values, are elements that are not objects and do not have associated methods. In JavaScript, the primitives are string, number, boolean, bigint, symbol, and undefined. Today we are going to focus on the primitive chain value.
The interesting thing about the primitive string value is that it is usually interchangeable with the primitive String object. In most cases, JavaScript will automatically wrap a primitive String object wrapper around a primitive string and force the use of String methods. So in most cases, you don’t have to worry about changing a primitive string (with no methods available) to a primitive String object (with methods available).
Syntax
The syntax of the String charAt () method is quite simple. Let’s start with the channel we want to look at. Since this is a String object, we use dot notation to access the method and bind it at the end. To invoke it, we add parentheses at the end with the index we want to find.
The charAt () method returns the character at this index in the string. Remember that strings are zero-based, so indices start at 0 and start from there in sequential order. Here’s a working implementation - use inputs to add a string and index, then hit enter. Unless you requested an out-of-range index, it should return a single character in the requested index.
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