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nil detection in Go

...mpiler is pointing the error to you, you're comparing a structure instance and nil. They're not of the same type so it considers it as an invalid comparison and yells at you. What you want to do here is to compare a pointer to your config instance to nil, which is a valid comparison. To do that you...
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What techniques can be used to define a class in JavaScript, and what are their trade-offs?

...at least a couple of ways to go about doing that. What would be the syntax and why would it be done in that way? 19 Answers...
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How to put a label on an issue in GitHub if you are not a contributor / owner?

I've submitted an issue for a project on GitHub which is not mine and I'm not a contributor, but I cannot find a way to label my issue. Is there a way for me to label it, or is this only available for contributors? ...
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Why is Scala's immutable Set not covariant in its type?

...nt hinges around "the concept behind sets as functions" - could this be expanded upon? For example, what advantages does "a set as a function" give me that a "set as a collection" not? Is it worth losing the use of that covariant type? – oxbow_lakes Mar 24 '09 ...
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How can I read a whole file into a string variable

...ame string) ([]byte, error) ReadFile reads the file named by filename and returns the contents. A successful call returns err == nil, not err == EOF. Because ReadFile reads the whole file, it does not treat an EOF from Read as an error to be reported. You will get a []byte instead of a st...
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Can anyone explain python's relative imports?

...With start.py: import pkg.sub.relative Now pkg is the top level package and your relative import should work. If you want to stick with your current layout you can just use import parent. Because you use start.py to launch your interpreter, the directory where start.py is located is in your py...
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disable maven download progress indication

...rg.slf4j.simpleLogger.log property as documented here. Using only the command line, you can do this: mvn -Dorg.slf4j.simpleLogger.log.org.apache.maven.cli.transfer.Slf4jMavenTransferListener=warn -B ... Or you can use the MAVEN_OPTS environment variable as described here: export MAVEN_OPTS=-Dor...
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View.setPadding accepts only in px, is there anyway to setPadding in dp?

Android function View.setPadding(int left, int top, int right, int bottom) only accepts values in px but I want to set padding in dp. Is there any way around it? ...
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How to send commands when opening a tmux session inside another tmux session?

... The send-prefix command can be used to send your prefix keystroke to (the process running in) the active pane. By default, the prefix is C-b and C-b is bound to send-prefix (so that hitting it twice sends a single C-b to the active pane). This i...
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Commands executed from vim are not recognizing bash command aliases

I use bash on mac and one of the aliases is like this 5 Answers 5 ...