Why Codesandbox can't render the code and show strange error - codesandbox

I learn JavaScript and read code at this Codesandbox
Problem is it gives this error often on some Sandbpxes:
NoSuchMethodError: method not found: 'write$1' on null
It looks like this; What can I do to remove this error?

If your project has any .scss, comment it all.
After it works fine, that is a problem of stylesheet.
Check what variable(starting with '$') is wrong or missing.
If you add third party component, check guide line for it.

Related

Why is it showing me an error while print, in a plain game project?

I have created an empty Game Project. I tried to use "print" to start with, but got an error right away. I have no idea what could be wrong, I'm a beginner.
The print statement you write must be written in another method.

Unity not allowing me to use Screen.safeArea

I am trying to adjust the UI in my game to properly fit on the screen of an iPhone X.
In my code I am attempting to code the line return Screen.safeArea
However 'safeArea' is highlighted red and when I hover over the error with my cursor a message is displayed saying "error CS0117: 'UnityEngine.Screen' does not contain a definition for 'safeArea'".
I dont understand why I'm getting this error because according to Unity's documentation UnityEngine.Screen does contain a definition for safeArea.
Any inclination or idea as to why I am running into this error?
Also, I am working with Unity 2017.2.0f3
As per comments bellow, code as been asked for.
private Screen ReturnSafeArea(){return Screen.safeArea}
as I tried saying, the code has nothing to do with it. Even in this simplistic instance of the use of Screen.safeArea, safeArea is listed as not a definition of UnityEngine.Screen.
Hovering over safeArea displays the following message
"'Screen' does not contain a definition for 'safeArea"
Screen.screenArea is of type Rect and your method is defined as returning a value of type Screen
https://docs.unity3d.com/ScriptReference/Screen-safeArea.html
One way to correct this:
private Rect ReturnSafeArea(){
return Screen.safeArea;
}
Additionally, the field was added in 2017.2.0p1 (Nov 6) and you're on 2017.2.0f3 (Oct 3). Link is for 0.2, but 0.f3 does not have its own page, so likely was made either the same day or very shortly after.
I believe Screen.safeArea was added in a minor release of 2017.2, so 2017.2.0f3 would not have it. Try your code in 2017.2.1 and newer to confirm. It's too bad the documentation doesn't specify that.

Trigger featherlight.js by clicking image without <a> element

Is there a way to get featherlight.js to trigger on an image itself, as opposed to a surrounding link?
For example, I'm trying this:
$('img.pop').featherlight($(this));
But getting an error:
a.cloneNode is not a function
Should not be a problem. The problem is probably what is this in your code above. That's why my advice to anyone ever reporting a problem is to produce a working example.

Ionic app sidemenus don't work after closing $ionicPopup

The Ionic app I'm working on displays a $ionicPopup when it starts and after closing the popup, the two sidemenus the app contains don't work at all. If I remove the popup from the code, the sidemenus work well.
Does anyone have an idea what the problem could be?
Add the following code to the controller that contains the slidebox:
$scope.$on('$ionicView.enter', function(){
$ionicSlideBoxDelegate.update();
})
I had the same problem than you. I resolved with this.
Solution
I was facing this same problem.
In my case, this was happening because, the enable-menu-with-back-views="true" option in ion-side-menu was set false.
It got back to work when setting it to true. =)

using breakpoints for the first time

Hi all I am using breakpoints for the first time and I had them working fine, but now my site adapts to the mobile layout but not the screen-size for mobile! I can't see any unclosed tags or css erros, any clue what could be causing this?
http://bennyfit.co.uk/
best,
Try putting your css through a validator. This usually shows up errors that are hard to spot normally:
http://jigsaw.w3.org/css-validator/