flutter substring

Flutter Substring

To get a substring in Flutter, you can use the substring() method provided by the String class. This method allows you to extract a portion of a string based on the specified start and end indices.

Here's an example of how to use the substring() method in Flutter:

String originalString = "Hello, World!";
String substring = originalString.substring(startIndex, endIndex);

In the above code snippet, originalString is the string from which you want to extract a substring. startIndex is the index at which the substring should start, and endIndex is the index at which the substring should end (exclusive).

For example, if you want to extract the substring "World" from the string "Hello, World!", you can use the following code:

String originalString = "Hello, World!";
String substring = originalString.substring(7, 12);

The substring variable will now contain the value "World".

Keep in mind that the substring() method throws an exception if the specified indices are out of range. So, make sure to handle any potential exceptions that may occur.

I hope this helps! Let me know if you have any further questions.