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Check synchronously if file/directory exists in Node.js
...ated but fs.existsSync() is no longer deprecated. So you can safely use it now.
Original answer from 2010:
You can use statSync or lstatSync (docs link), which give you an fs.Stats object. In general, if a synchronous version of a function is available, it will have the same name as the async ver...
How to delete a module in Android Studio
... record of the project app folder(Check it by clcking on the Gradle View). Now go to File->Close Project.
Step 3: Now you are at the start window. Move the cursor on the in recent project list. Press Delete.
Step 4: Delete the folder from the explorer by moving or deleting it actually. This lo...
How to use background thread in swift?
..., after the previous code in outer block")
})
})
Pre Swift 1.2 – Known issue
As of Swift 1.1 Apple didn't support the above syntax without some modifications. Passing QOS_CLASS_BACKGROUND didn't actually work, instead use Int(QOS_CLASS_BACKGROUND.value).
For more information see Apples do...
Mapping two integers to one, in a unique and deterministic way
...s is the correct answer for unbounded integers.
– Unknown
May 28 '09 at 7:53
4
How can i get agai...
How to download source in ZIP format from GitHub?
...
not without using the Github API as far as I know.
– Christoph
Feb 11 '13 at 15:25
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What does the function then() mean in JavaScript?
...call takes a callback function that is executed when the server
responds.
Now of course the more levels of nesting we have, the harder the code is to read, debug,
maintain, upgrade, and basically work with. This is generally known as callback hell.
Also, if we needed to handle errors, we need to po...
How does the socket API accept() function work?
...dard for TCP/IP and UDP/IP communications (that is, networking code as we know it). However, one of its core functions, accept() is a bit magical.
...
What are namespaces?
... output() to output the final feed.
When you call output(), how does PHP know whether to use your output() function or the RSS library's output() function? It doesn't. Unless you're using namespaces.
Example
How do we solve having two output() functions? Simple. We stick each output() functio...
How to fix “no valid 'aps-environment' entitlement string found for application” in Xcode 4.3?
...EDIT -> Make
an edit -> Download new provisioning
Worked for me. Now i'm able to use push.
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Get property value from string using reflection
...null value of an existing property or no property at all? I'd much rather know immediately that I was sending in a bad property name. This is not production code, but a better improvement would be to throw a more specific exception (e.g. check for null on GetProperty and throw PropertyNotFoundExcept...