characterAtIndex:
Returns the character at a given array position.
- (unichar)characterAtIndex:(NSUInteger)index
Parameters
- index
- The index of the character to retrieve. The index value must not lie outside the bounds of the receiver.
Return Value of [NSString characterAtIndex]
The character at the array position given by index.
Discussion
Raises an
NSRangeException if index lies beyond the end of the receiver.
Example of [NSString characterAtIndex]
NSString *newString;
if ( [[myString characterAtIndex:0] isEqualToString:@"*"] ) {
newString = [myString substringFromIndex:1];
}
Example of [NSString characterAtIndex]
NSString *temp = @"Hello";
NSString *temp2 = @"H";
if([temp characterAtIndex:0] == [temp2 characterAtIndex:0] )
Example of [NSString characterAtIndex]
unichar ch = [self.text characterAtIndex:position];
NSLog(@"%c", ch);
if (ch == '.') {} // single quote around dot, not double quote