learn-co-curriculum / fewpjs-reviewing-intermediate-javascript-quiz

Quiz: Reviewing Server Communication

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Reviewing Server Communication

?: When we talk about scope in JavaScript, we're talking about:

( ) how many functions are included in the code. ( ) how long the code is. (X) where declared variables and functions are accessible within the code. ( ) how many variables are declared in the code.

?: What types of scope are there?

[X] function [X] global [X] block [X] local

?: In the following code, we are able to access the myVar value.

  function myFunc () {
    const myVar = 25;
  }
  myVar * 5;

( ) True (X) False

?: It's best practice to create all variables as global variables.

( ) True (X) False

?: When the JavaScript engine looks for variable values, it:

( ) first checks the top of the code for globally declared variables. ( ) checks another files for declared variables. (X) first looks for a match locally, then checks outer scopes. ( ) looks for where the variables are invoked.

?: Scope based on where variables and blocks of scope are defined by the programmer at the time it's written, and solidified by the time the code is processed, is called:

( ) global scope (X) lexical scope ( ) block scope ( ) nested scope

?: Given the following code sample, what result should we expect to show up in the console?

const myVar = 'Foo';

function first () {
  console.log('Inside first()');

  console.log('myVar is currently equal to:', myVar);
}

function second () {
  const myVar = 'Bar';

  first();
}

( ) // LOG: Inside first() // LOG: myVar is currently equal to: Bar // => undefined (X) // LOG: Inside first() // LOG: myVar is currently equal to: Foo // => undefined ( ) // LOG: myVar is currently equal to: Foo // LOG: myVar is currently equal to: Bar // => undefined ( ) // LOG: Inside first() // => undefined

?: The following code works just fine. How is it that it can run even though in the code the function declaration happens after the function invocation?

myFunc();

function myFunc () {
  return 'Hello, world!';
}

(X) The JavaScript engine only cares about function declarations in the compliation phase, and in the execution phase it only cares about function invocations. ( ) The JavaScript engine can guess what the function is supposed to do. ( ) The JavaScript engine can physically move your code around to place declarations at the top. ( ) The JavaScript engine will wait until you declare the function.

?: Best practice in declaring variables is to:

( ) put all your variables in a separate file. ( ) repeat your variables in every function. ( ) make all your variables global. (X) declare all of your functions at the top of their scope.

?: It is equally okay to use "const," "let," or "var."

( ) True (X) FALSE

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fewpjs-reviewing-intermediate-javascript-quiz's Issues

Quiz title doesn't match repo name

Something seems off, this says communication with the server in the quiz body