Mastering Xcode: Develop and Design, Second Edition

Chapter 12. Advanced Editing

In Chapter 5, you explored the Source editor and some of its features. In this chapter, you’ll explore a few more powerful features and familiarize yourself with some additional tips and tricks to make better use of the editor.

Renaming Symbols

The Edit All in Scope command is a simple and often overlooked editor feature. As its name suggests, you can edit a symbol name and automatically change each instance of it within the current scope at the same time.

Consider a local variable named bob. You’ve decided a variable should sound more formal, so you want to change bob to robert. Assuming bob is reused throughout the current scope of a long method, it would be tedious and error-prone to find and rename each instance, ...