values and variables

values and variables

1. a variable is how a programer access to data and information (values). This is saved in the RAM memory

   • give a name to a value to then change it using math or other actions.

2. name used to refer a value

   • Integer
     • a whole number that counts amount of things or objects
       • can be + or -
         • 3, 4, -9
           • math operations can be done
   • decimals
     • number including fractions
       • 1.34, 56.98
   • string
     • sequence of letters diferenciated from code by quotations
       • "hello"

3. values

   • are saved inside values or constants
     • they are outputted by the program
       • screen
       • component
       • structure on a web page