It's not specific nor limited to javascript. The term "canvas" in this context is much older and seems to be used across many platforms. Random examples from t

It's not specific nor limited to javascript. The term "canvas" in this context is much older and seems to be used across many platforms. Random examples from the (desktop) Java/Android/iOS world where the same semantics is used: https://docs.oracle.com/javase/8/docs/api/java/awt/Canvas.html https://docs.oracle.com/javase/8/docs/api/java/awt/Canvas.ht... https://developer.android.com/reference/android/graphics/Canvas https://developer.android.com/reference/android/graphics/Can... https://developer.apple.com/documentation/SwiftUI/Canvas https://developer.apple.com/documentation/SwiftUI/Canvas