JavaScript-Garden | quirky parts of the JavaScript language
kandi X-RAY | JavaScript-Garden Summary
kandi X-RAY | JavaScript-Garden Summary
JavaScript Garden is a growing collection of documentation about the most quirky parts of the JavaScript programming language. It gives advice to avoid common mistakes, subtle bugs, as well as performance issues and bad practices that non-expert JavaScript programmers may encounter on their endeavours into the depths of the language. JavaScript Garden does not aim to teach you JavaScript. Former knowledge of the language is strongly recommended in order to understand the topics covered in this guide. In order to learn the basics of the language, please head over to the excellent [guide][1] on the Mozilla Developer Network.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of JavaScript-Garden
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Trending Discussions on JavaScript-Garden
QUESTION
I've got a simple Angular observable that should run continuously, checking a time difference on each loop, and looping once a second. I'm getting "InternalError: too much recursion" when I run it. According to this: http://bonsaiden.github.io/JavaScript-Garden/#dealing-with-possible-blocking-code I'm using the correct method. How to fix?
The Angular observable:
...ANSWER
Answered 2019-May-31 at 16:59You are calling the function and not assigning it in your timeout
QUESTION
I have read this paragraph about the this keyword : https://bonsaiden.github.io/JavaScript-Garden/#function.this
In this first case this
refers to global
objet, and it seems totally normal because when we have an arrow function, it automatically bind this
with the one in the outer scope.
ANSWER
Answered 2018-Nov-05 at 00:47Although I myself am far from good with objects (need to work on that), I think that when you do const test = new Test()
you initialize a new object. That way, the scope(?) of this
references only to the newly created object, thus why you do this.foo
and later on you reference to that foo property by using obj.foo
. On the other hand, when you just do const obj = { .... }
, you don't actually initialize a new object, so the this
goes straight to the global object - the window. So, const test = new Test
creates a new object, while using only const obj = {}
is not a new object and this
by default goes to the window object.
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