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Add a new element to an array without specifying the index in Bash
...=()
ARRAY+=('foo')
ARRAY+=('bar')
Bash Reference Manual:
In the context where an assignment statement is assigning a value to a shell variable or array index (see Arrays), the ‘+=’ operator can be used to append to or add to the variable's previous value.
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How to avoid long nesting of asynchronous functions in Node.js
...s, it is often much easier to read inline anonymous functions, as in your example. It will also spare you from having to find a name for all the callbacks.
In addition note that as @pst noted in a comment below, if you are accessing closure variables within the inner functions, the above would not ...
What is an Intent in Android?
... which you tell your friend John to do something, or to friends who can do X ("intent filters"), to do X. The other folks will ignore the email, but John (or friends who can do X) will react to it.
To listen for an broadcast intent (like the phone ringing, or an SMS is received), you implement a br...
What makes Scala's operator overloading “good”, but C++'s “bad”?
...n the other hand doesn't have operators in that way. It just has great flexibility in defining method names plus a bit of built in precedence for non-word symbols. So technically Scala doesn't have operator overloading.
Whatever you want to call it, operator overloading isn't inherently bad, even...
How do I get logs/details of ansible-playbook module executions?
Say I execute the following.
6 Answers
6
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Resizing an iframe based on content
...s the src of the iframe at this point to helper.html?height=N
There's an explanation here of how facebook handle it, which may be slightly clearer than mine above!
Code
In www.foo.com/home.html, the following javascript code is required (this can be loaded from a .js file on any domain, incident...
Git push error '[remote rejected] master -> master (branch is currently checked out)'
... bare repository - the folder contains only the actual repository data).
Execute the following command in your remote repository folder:
git config --bool core.bare true
Then delete all the files except .git in that folder. And then you will be able to perform git push to the remote repository w...
Get the IP address of the machine
...al computer -Question. However I need to find the IP address(es) of a Linux Machine .
12 Answers
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Why is SCTP not much used/known
I recently checked out the book "UNIX Network Programming, Vol. 1" by Richards Stevens and I found that there is a third transport layer standard besides TCP and UDP: SCTP .
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Would you, at present date, use JBoss or Glassfish (or another) as Java EE server for a new project?
...container. Carefully think and investigate before you commit to BPM, for example, and avoid AquaLogic BPM at (almost) all costs--it is ugly in the extreme.
If you really must use a full-blown J2EE container, consider open-source first because it is more robust, better supported, and more cost-effe...