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EDITx is an open IT Library of questions to share and gain knowledge. Become an EDITx author because you care: share your knowledge to fit everyone benefit with a quality IT education.

What you get...

As contributor of the IT library, you allow others to use your questions, in the same way you can make use of theirs. Nevertheless, you keep the intellectual property on your work and will be notified any time that an author is using your questions or when someone answers your questions. Moreover, your privileged status allows you to set up private and public tests, to share your questions with your students, friends, colleagues or acquaintances and to get the results in real time.

... is what you give !

To become an EDITx Author, you just need to set up 5 QCM questions, in the field of your choice, and indicate the right answer. If your questions allows a better "Education in IT for X", you will receive the status and advantages of an EDITx Author.

Post date Author Category Body Stats
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
ES6

A for... loop is processing object properties instead of iterable values. Why?

850 answers
339 good - 511 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

You want to use a type definition file for jQuery.

950 answers
609 good - 341 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
HTML 5

How can Web Workers change what the user sees?

739 answers
147 good - 592 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

You want to write a decorator called "sealed" with no implementation.

650 answers
516 good - 134 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
HTML 5

Media formats supported by the HTML audio and video elements without help from 3rd party...

269 answers
260 good - 9 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

What is the benefit of using a type guard?

800 answers
566 good - 234 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
ES6

Regardless of the parameter passed into this function, it never prints to the console. Why?

480 answers
373 good - 107 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
CSS

Pseudo-classes are used to represent which of the following?

221 answers
49 good - 172 bad
 
25.11.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
HTML 5

Which method do you use to remove data from an object store?

331 answers
239 good - 92 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

Which set of component lifecycle hooks are valid and listed in the same sequence they fire?

323 answers
147 good - 176 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

Which is the correct command to create a component in the same folder as its NgModule, using...

950 answers
694 good - 256 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

What is the common way to specify validation rules on an input element with template-driven...

334 answers
1 good - 333 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
CSS

With regards to the cascade effect of CSS, when does the order of CSS style rules matter most?...

610 answers
82 good - 528 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
HTML 5

How do you paint an image on the canvas?

576 answers
283 good - 293 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

Which is the correct syntax for the safe navigation operator?

355 answers
300 good - 55 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
JavaScript

How do you accomplish function overloading behavior in Javascript?

315 answers
36 good - 279 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

What public properties exist on the following class definition?
 

318 answers
58 good - 260 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

What is the benefit gained by using a type definition file?

782 answers
745 good - 37 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

When is it appropriate to use optional parameters versus query parameters when dealing with...

445 answers
164 good - 281 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
JavaScript

What happens when the following code is executed?

771 answers
440 good - 331 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

Which is an intended use of a symbol?

400 answers
209 good - 191 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

You want to add the value 12 to an existing tuple called myTuple.

350 answers
265 good - 85 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
HTML 5

How much local storage space per origin is recommended by the W3C?

370 answers
153 good - 217 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
JavaScript

Which of the following is a method of a RegExp object?

979 answers
546 good - 433 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
JavaScript

What is JSONP used for?

221 answers
49 good - 172 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
TypeScript

How might you declare a new variable that could be assigned either of the two following logger...

111 answers
8 good - 103 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
JavaScript

What does the following return?
Number(null);

959 answers
262 good - 697 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
ES6

What is the name for a function on a class that can be invoked without creating a new instance...

174 answers
91 good - 83 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
Angular

Which of the following will create a local "EventEmitter" named "handleSelected" and expose an...

467 answers
286 good - 181 bad
 
01.10.2019
Fabien Dehopré
Senior Frontend Developer at Satellit
CSS

Which of the following is true regarding the flexbox layout mode?

110 answers
76 good - 34 bad