Objective c checking whether text field is empty

Question

Here's the code:

- (IBAction) charlieInputText:(id)sender {     //getting value from text field when entered     charlieInputSelf = [sender stringValue];      if (charlieInputSelf != @"") {         //(send field if not empty     } }     

This sends it even when the field is empty; therefore, this does not work as I want it to.

Answer 1

Simply checks for nil and if length of text length is greater than 0 - not empty

if (textField.text && textField.text.length > 0) {    /* not empty - do something */ } else {    /* what ever */ } 

Answer 2

We already have inbuilt method that return boolean value that indicates whether the text-entry objects has any text or not.

// In Obj-C if ([textField hasText]) {         //*    Do Something you have text     }else{          /* what ever */     }  // In Swift  if textField.hasText {     //*    Do Something you have text }else{      /* what ever */ }