Read the value at the top of the stack. Used in if statement conditionals.
When writing an if statement, you may want to use a value from a previous computation.
To do so, you need to use Read[] to retrieve the last computed value before an if statement was evaluated.
Syntax
Read[]
Examples
The following example loads an image, reads the text in the image, and shows the image if it contains "tea".
Load["./photo.jpg"]
GetText[]
If[Read[] == "tea"]
Show[]