Expression

• Any valid unit of code that resolves to a value.

• All values in a programming language have this - such as a Number, Boolean, or String - that dictates how the computer will interpret it. For example 7+5 is interpreted differently from "7"+"5"

• a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• a function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.

Callback Function

• a function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.

• An action that causes something to happen.

• a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• a function specified as part of an event speaker; it is written by the programmer but called by the system as the result of an event speaker.

Data Type

• a function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.

• All values in a programming language have this - such as a Number, Boolean, or String - that dictates how the computer will interpret it. For example 7+5 is interpreted differently from "7"+"5"

• a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• Any valid unit of code that resolves to a value.

Event-driven program

• Any valid unit of code that resolves to a value.

• a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• A generic term for a type of programming statement (usually an if-statement) that uses a Boolean condition to determine whether or not to run a certain block of statements.

• a program designed to run blocks of code or functions in response to specified sounds (e.g. a microphone)

Event

• a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)

• An action that causes something to happen.

• a command that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

• Any valid unit of code that resolves to a value.

Event listener

• Any valid unit of code that resolves to a value.

• a command that can be set up to trigger a function when a particular type of event occurs on a particular UI element.

• An action that causes something to happen.

• an event that listens to your every word

== (equal equal)

• An action that causes something to happen.

• is used to compare two values, and returns a Boolean (true/false).

• The common programming structure that implements "conditional statements".

• Can only be seen, used and updated by code within the same scope. Typically declared (created) inside a function -- includes function parameter variables.

If-statement

• The common programming structure that implements "non-conditional statements".

• The common programming structure that implements "conditional statements".

• Can only be seen, used and updated by code within the same scope. Typically declared (created) inside a function -- includes function parameter variables.

• a function specified as part of an event listener; it is written by the programmer but called by the system as the result of an event trigger.

Local variable

• Can only be seen, used and updated by code within the same scope. Typically declared (created) inside a function -- includes function parameter variables.

• The common programming structure that implements "conditional statements".

• Statements that only run under certain conditions.

• a programming construct used to repeat a set of commands as long as a boolean condition is true.

Variable Scope

• a programming construct used to repeat a set of commands as long as a boolean condition is true.

• Dictates what portions of the code can "see" or use a variable, typically derived from where the variable was first created.

• Any sequence of characters between quotation marks (ex: "hello", "42", "this is a __________!").

• Statements that only run under certain conditions.