Use indexOf to check the existance of an substring

 

package{
  import flash.display.Sprite;
  
  public class Main extends Sprite{
    public function Main(){
        var sTitle:String = new String("ActionScript Demo");
        var nIndex:Number = sTitle.indexOf("Script");
        if(nIndex != -1) {
          trace("substring was found");
        }
    }
  }
}

Related examples in the same category

1.	Finding Substrings
2.	Find all the occurrences of a substring.
3.	Use indexOf and lastIndexOf to locate specific string
4.	Searching for a Substring
5.	Use offset index in indexOf method to search substring
6.	Use indexOf( ) in a while statement to get the indices of every occurrence of a substring
7.	Use lastIndexOf to search string
8.	Use offset in lastIndexOf method
9.	Is indexOf case sensitive
10.	Use the lastIndexOf method to get the file extension name
11.	Returns everything before the last period, if any.
12.	Use indexOf in while loop to count the instance of a substring

Use indexOf to check the existance of an substring : indexOf lastIndexOf « String « Flash / Flex / ActionScript

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