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How to avoid 'cannot read property of undefined' errors?
...cording to ECMAScript 2020 or later, see optional chaining.
TypeScript has added support for optional chaining in version 3.7.
// use it like this
obj?.a?.lot?.of?.properties
Solution for JavaScript before ECMASCript 2020 or TypeScript older than version 3.7:
A quick workaround is using a try...
Hamcrest compare collections
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JoeJoe
21.2k99 gold badges5858 silver badges7272 bronze badges
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Developing GUIs in Python: Tkinter vs PyQt [closed]
...rface toolkit available right now.
There are only two real (potential) disadvantages:
PyQt is only available under the GPL. This means if you release your code, it has to be available under a compatible license, under the terms of Nokia's GPL Exception, or under a commercial license (which costs ...
Calculate date/time difference in java [duplicate]
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vels4j
10.6k44 gold badges3232 silver badges5252 bronze badges
answered Mar 18 '11 at 11:46
Peter LawreyPeter Lawrey
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nginx server_name wildcard or catch-all
... serves several websites. The first is a status message on the server's IP address. The second is an admin console on admin.domain.com . These work great. Now I'd like all other domain requests to go to a single index.php - I have loads of domains and subdomains and it's impractical to list them ...
ng-repeat :filter by single field
...ited Apr 13 '18 at 15:24
Mario Padilla
50155 silver badges1717 bronze badges
answered Feb 6 '13 at 15:58
Mark ...
How to install Homebrew on OS X?
...brew to install another application (in this case, wget) after brew is already installed.
Edit:
Above command to install the Brew is migrated to:
/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
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How do I Disable the swipe gesture of UIPageViewController?
...ains UINavigationController which contains UIViewController . I need to add a swipe gesture to the last view controller, but swipes are handled as if they belong to page view controller. I tried to do this both programmatically and via xib but with no result.
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AWS S3: The bucket you are attempting to access must be addressed using the specified endpoint
I am trying to delete uploaded image files with the AWS-SDK-Core Ruby Gem.
15 Answers
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Error: allowDefinition='MachineToApplication' beyond application level
I have downloaded the online project in ASP.Net. While running application I get an error
35 Answers
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