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iOS Swift Basics Swift Operators Assignment and Comparison

Matthew Lurie
Matthew Lurie
3,512 Points
Posted by Matthew Lurie
Matthew Lurie
3,512 Points

Still confused about the Equals operator ("==") vs. Assignment operator ("="). What's the difference exactly?

I know it was discussed in the the video but it went over my head.

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

The equality operator ("==") just compares the value on the left to the value on the right. If they match, it returns "true". and otherwise "false". But neither side is changed.

The assignment operator ("=") changes the value on the left to be the same as the value on the right. Any value the left side held before is lost.

So in a since, the first one asks a question ("are they the same?") and the second one performs a command ("make the left one the same").