This line uses spaces for indentation.
	This line uses a tab character.
	    This line uses multiple spaces.
			This line uses multiple tabs.
  This line has mixed spaces and tabs.

The following lines demonstrate inconsistent indentation:
	First level with tab
  Second level with two spaces
	    Third level with multiple spaces
			Fourth level with multiple tabs

Mixed indentation patterns cause formatting issues:
  Line 1: Two spaces
  	Line 2: One space + one tab
	    	Line 3: Tab + multiple spaces
	Line 4: Single tab

When normalizing, decide whether to use tabs or spaces:
	Tab-based indentation looks like this
    Space-based indentation looks like this
  	Mixed indentation looks like this (messy!)

Code examples with mixed indentation:
	function example() {
	  if (condition) {
	   	 doSomething();
	  } else {
	    	doOther();
	  }
	}

Always maintain consistency throughout your documents!