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Variables Introduction

Variables

Variables are containers for storing data values.

Creating Variables

Unv has no command for declaring a variable.

A variable is created the moment you first assign a value to it.

x =  5
y = "John"
print(x)
print(y)

Don't change the type of variable after they have been set.

x =  4 # x is of type int
x = "Sally" # x is now a string
print(x)
# This is bad code - hanging the type of varible is NOT good practice

Casting

If you want to specify the data type of a variable, this can be done with casting.

x =  string(3) # x will be '3'
y = number(3) # y will be 3

Single or Double Quotes?

String variables can be declared either by using single or double quotes:

x =  "John"
# is the same as
x = 'John'

There's no difference in UNV , unlike other languages.

Yes , They are case-sensitive

Variable names are case-sensitive.

This will create two variables:

a =  4
A = "Sally"
#A will not overwrite a
Supported Runtimes

Check is your flavour of Unv is supported.