Getting started with the charAt method of JavaScript string objects (used to obtain the character at the specified position)_Basic knowledge

JavaScript charAt method

The charAt method is used to get the character at the specified position from the string. Its syntax is as follows:

Copy code The code is as follows:

str_object.charAt( x )

Parameter description:

参数	说明
str_object	要操作的字符串（对象）
x	必需。表示位置的数字

Tip: String counting starts from 0.

charAt method instance

Copy code The code is as follows:

Run this example, output:

Copy code The code is as follows:

b

Tip: If the parameter x is not between 0 and the maximum length of the string, this method will return an empty string.