Stack #2807592
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | The "User Interface" or UI of an app refers to how a person (user) interacts with the computer or app.
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| show | objects, like buttons, images, text boxes, pull down menus, screens and so on.
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| UI Events | show 🗑
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| show | a program designed to run blocks of code or functions in response to specified events (e.g. a mouse click)
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| show | an overarching term for the coding tasks involved in making your app respond to events by triggering functions.
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| show | a command (onEvent in App Lab) that can be set up to trigger a function when a particular type of event occurs on a particular UI element.
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| Callback function | show 🗑
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| Debugging | show 🗑
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| show | In JavaScript (and most programming languages) the most primitive type of memory you can use is called a variable. It's called a variable because it's a piece of memory in which you can change what's stored - its value can vary.
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| Expression | show 🗑
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| show | All values in a programming language have a "type" - 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"
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| show | dictates what portions of the code can "see" or use a variable, typically derived from where the variable was first created.
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| show | Any sequence of characters between quotation marks (ex: "hello", "42", "this is a string!").
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| Concatenate | show 🗑
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| show | The common programming structure that implements "conditional statements".
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| show | Another term for if statements -- statements that only run under certain conditions
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| show | A generic term for a type of programming statement (usually an if-statement) that uses a Boolean condition to determine, or select, whether or not to run a certain block of statements.
Resources
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| show | A single value of either TRUE or FALSE
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| show | in programming, an expression that evaluates to True or False.
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| show | a programming construct used to repeat a set of commands while a boolean condition is true.
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| Models and Simulations | show 🗑
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| show | A generic term for a programming data structure that holds multiple items.
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| Array | show 🗑
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| Key event | show 🗑
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| keyup | show 🗑
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| show | event type triggered when key is pressed down on the keyboard
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| event.key | show 🗑
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| show | A typical looping construct designed to make it easy to repeat a section of code using a counter variable. The for loop combines the creation of a variable, a boolean looping condition, and an update to the variable in one statement.
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| return | show 🗑
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| Canvas | show 🗑
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
chris10byrd