This is part of the Semicolon&Sons Code Diary - consisting of lessons learned on the job. You're in the types category.
Last Updated: 2024-11-21
Ruby is dynamically and strongly typed where as JavaScript is dynamically and weakly typed. What is this strong vs weak distinction?
Basically Ruby will let you do this:
x = "3"
y = x + "foo!" # "3foo"
but not this:
x = "3"
y = x + 3 #BOOM
i.e. if you start mixing types together in an expression (here: string and
Fixnum), it will cause an exception.
However, JavaScript -- being weakly typed -- will attempt to make this work:
x = "3"
y = x + 3 // Gives "33"