Intro to JavaScript Key Terms Part 2

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Across
  1. 4. An expression that is considered to be either truthy or falsy.
  2. 5. Determines the accessibility (visibility) of variables and functions.
  3. 8. Declares a block scope local variable, optionally initializing it to a value
  4. 9. A logical data type that can have only the values true or false.
  5. 11. The typeof operator returns a string indicating the type of the unevaluated operand.
  6. 12. Data entered into a program, either by the programmer or digitally.
  7. 13. Enable storing a collection of multiple items under a single variable name, and has members for performing common array operations.
  8. 18. Reserved syntax consisting of punctuation or alphanumeric characters that carries out built-in functionality. For example, in JavaScript the addition operator ("+") adds numbers together and concatenates strings.
  9. 19. A set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and the output.
  10. 20. Evaluates an expression, matching the expression's value against a series of case clauses, and executes statements after the first case clause with a matching value, until a break statement is encountered.
Down
  1. 1. Determines the accessibility (visibility) of variables and functions.
  2. 2. A group of statements inside of curly braces {}
  3. 3. A variable without a value has the value undefined. The type is also undefined. Any variable can be emptied, by setting the value to undefined. The type will also be undefined.
  4. 6. Allows you to accept user input as a string and store it on a variable.
  5. 7. Declares a read-only named constant
  6. 10. A block of code that evaluates to a value.
  7. 14. Executes a statement if a specified condition is truthy. If the condition is falsy, another statement in the optional clause will be executed.
  8. 15. Data from the program is shown to the user, either on screen or in the form of a physical output such as printouts or signals.
  9. 16. Declares a variable, optionally initializing it to a value
  10. 17. A sequence of instructions that is continually repeated until a certain condition is met.