CharAt () function usage instance code, charat function usage instance

CharAt () function usage instance code, charat function usage instance

Example code of charAt () function usage:
This section briefly introduces the usage of the charAt () function, hoping to help you.
This function returns characters at the specified position in a string.
The position is represented by an index, starting from 0.
The code example is as follows:

 

Var str = "antzone"; console. log (str. charAt (1 ));

 

The preceding Code returns a string of 2 characters.
Therefore, the size should be limited to 0 to the str. length-1 range. If not, an empty character is returned.

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