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- Question 53
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Question 53/60
A developer is setting up a Node.js server and is creating a script at the root of the source code, index.js, that will start the server when executed. The developer declares a variable that needs the folder location that the code executes from.
Which global variable can be used in the script?
Which global variable can be used in the script?
Correct Answer: D
In Node.js:
__filename is the absolute path to the current file (including file name).
__dirname is the absolute path to the directory that contains the current file.
window.location is a browser-only global, not available in Node.js.
this.path is not a standard Node.js global for path information.
The requirement is:
"the folder location that the code executes from."
That is exactly what __dirname provides.
So the correct choice is __dirname.
Concepts: Node.js globals, __filename, __dirname, Node vs browser environment.
__filename is the absolute path to the current file (including file name).
__dirname is the absolute path to the directory that contains the current file.
window.location is a browser-only global, not available in Node.js.
this.path is not a standard Node.js global for path information.
The requirement is:
"the folder location that the code executes from."
That is exactly what __dirname provides.
So the correct choice is __dirname.
Concepts: Node.js globals, __filename, __dirname, Node vs browser environment.
- Question List (60q)
- Question 1: Refer to the code below: 01 let sayHello = () => { 02 con...
- Question 2: Refer to the code below: class Student { constructor(name) {...
- Question 3: Refer to the code: 01 console.log('Start'); 02 Promise.resol...
- Question 4: Refer to the code below: 01 let o = { 02 get js() { 03 let c...
- Question 5: Given the following code: let x = ('15' + 10) * 2; What is t...
- Question 6: A developer publishes a new version of a package with new fe...
- Question 7: A developer creates a new web server that uses Node.js. It i...
- Question 8: Given the code below: 01 function Person(name, email) { 02 t...
- Question 9: A developer is setting up a new Node.js server with a client...
- Question 10: Refer to the code: const pi = 3.1415926; What is the data ty...
- Question 11: Which statement accurately describes the behavior of the asy...
- Question 12: A developer creates a simple webpage with an input field. Wh...
- Question 13: Refer to the code below: 01 <html lang="en"> 02 <ta...
- Question 14: A developer wants to catch any error that countSheep() may t...
- Question 15: Refer to the following code: 01 class Ship { 02 constructor(...
- Question 16: Refer to the code below: 01 let timedFunction = () => { 0...
- Question 17: A developer wants to advocate for a mature, well-supported w...
- Question 18: A developer is trying to convince management that their team...
- Question 19: A developer initiates a server with the file server.js and a...
- Question 20: Which statement accurately describes an aspect of promises?...
- Question 21: A developer executes: document.cookie; document.cookie = 'ke...
- Question 22: Original code: 01 let requestPromise = client.getRequest; 03...
- Question 23: A developer removes the HTML class attribute from the checko...
- Question 24: static delay = async delay => { return new Promise(resolv...
- Question 25: Universal Containers (UC) just launched a new landing page, ...
- Question 26: A page loads 50+ <div class="ad-library-item"> element...
- Question 27: A developer has a module that contains multiple functions. W...
- Question 28: Given the code: 01 function GameConsole(name) { 02 this.name...
- Question 29: Refer to the code snippet: 01 let array = [1, 2, 3, 4, 4, 5,...
- Question 30: Which three browser specific APIs are available for develope...
- Question 31: Given the JavaScript below: function onLoad() { console.log(...
- Question 32: Refer to the code below: 01 new Promise((resolve, reject) =&...
- Question 33: Why does second have access to variable a?...
- Question 34: Refer to the code below: let productSKU = '8675309'; A devel...
- Question 35: Refer to the following array: let arr = [1, 2, 3, 4, 5]; Whi...
- Question 36: What are two unique features of fat-arrow functions compared...
- Question 37: Given a value, which two options can a developer use to dete...
- Question 38: Refer to the code below: 01 let total = 10; 02 const interva...
- Question 39: const str = 'Salesforce'; Which two statements result in the...
- Question 40: Refer to the code below: 01 x = 3.14; 02 03 function myFunct...
- Question 41: Given the JavaScript below: 01 function filterDOM(searchStri...
- Question 42: Which actions can be done using the JavaScript browser conso...
- Question 43: Refer to the code below: 01 function myFunction(reassign) { ...
- Question 44: A developer has an isDeg function that takes one argument, p...
- Question 45: A developer uses a parsed JSON string to work with user info...
- Question 46: Corrected code: let a = "*"; let b = "**"; // x = 3; console...
- Question 47: Refer to the code: 01 function execute() { 02 return new Pro...
- Question 48: A developer implements a function that adds a few values. fu...
- Question 49: Refer to the code below (assuming Promise.race is intended):...
- Question 50: A developer wrote the following code: 01 let x = object.valu...
- Question 51: 01 function Animal(size, type) { 02 this.type = type || 'Ani...
- Question 52: A developer wants to use a try...catch statement to catch an...
- Question 53: A developer is setting up a Node.js server and is creating a...
- Question 54: Refer to the code below (corrected to use a template literal...
- Question 55: A developer writes the code below to return a message to a u...
- Question 56: Correct implementation of try...catch for countsDeep():...
- Question 57: Refer to the code below: flag(); function flag() { console.l...
- Question 58: Refer to the code: 01 const exec = (item, delay) => 02 ne...
- Question 59: A developer is leading the creation of a new web server for ...
- Question 60: Which two console logs output NaN?...
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