coding advanced 3-4

Pick A

• a

• b

• c

• d

What is the purpose of a variable?

• To store data, and give it a name for later use

• To replace numbers

• To make algebra work

• show the x axis or y axis

The operator to assign values?

• ==

• <==

• =

• new

______ is a type of data that represents text

• Basic

• Syntax

• Argument

• String

Match the following

• assignment operator

• javaScript

• data storage

• =

• a number value of ten

• 10

• A string value "10"

• "10"

• coding language

• variable

what can we store in a JavaScript variable?

• food storage

  example

  tupperware

• strings

  example

  "abc"

• objects

  example:

  new Circle()

• boolean

  example:

  true

• numbers

  example

  3

Select 2: Why create variables with precise names?

• Write code understandable to others or yourself later in time

• Avoid duplicate names or reserved words in a language

• to store data for later use

• Short names are always bad

join a string "your heath points: " with variable hp

• concatenation

• +

• ++

• merge

var s = "1";

var i = "3";

var t = s + i;

// what is stored in variable t?

print( "health points: " + hp );

// what describes the + operator?

• +

  syntax error

• +

  add hp points

• +

  increment points

• concatentation