How to see if an NSString starts with a certain other string?

Question

I am trying to check to see if a string that I am going to use as URL starts with http. The way I am trying to check right now doesn\'t seem to be working. Here is my code:<

Answer 1

I like to use this method:

if ([[temp substringToIndex:4] isEqualToString:@"http"]) {
  //starts with http
}

or even easier:

if ([temp hasPrefix:@"http"]) {
    //do your stuff
}