null have in common is that they are both falsy values.
This means that when you use
undefined in a boolean context it will be considered
false. Boolean context is a context which evaluates to boolean value, either
false. One example of boolean context is condition in if…else statement. This is also why you should avoid testing for loose equality.
When you test for loose equality there is type coercion happening on the background. Both,
null, are falsy and this is what they will be considered. The result of test for loose equality will result in match. The result of this test will be
true. However, this is not really correct.
This article covers A-Z about the mobile and web app development process and answers your question on how long does it take to develop/build an app.
For a developer, becoming a team leader can be a trap or open up opportunities for creating software. Two years ago, when I was a developer, ... by Oleg Sklyarov, Fullstack Developer at Skyeng company