You already known the concept of values in Basic Terms, now we are going to learn more about it and learn how to write it in a way that machine can understand.
You cannot mention value without mentioning value types. Value types describes what category the value is.
Here are some common types:
1
, 1000
, 20.5
are all correct"test"
. "I love you"
, "a"
, "123"
, ""
(blank string) are all correct.True
or False
.5
and "5"
This is a question that a lot of students are confused about. 5
is a number, it can add with other numbers for example 5 + 1
will give you 6
. "5"
is a string, which is a text. You can’t add it to numbers, but you can add it to other strings, for example "5" + "test"
will give you "5test"
, "5" + "1"
will give you "51"
.
Next: Operators