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HTTP GET Request in Node.js Express
How can I make an HTTP request from within Node.js or Express.js? I need to connect to another service. I am hoping the call is asynchronous and that the callback contains the remote server's response.
...
Haskell error parse error on input `='
...ne things in it.
Prelude> let f x = x * 2
Prelude> f 4
8
Starting from GHC 8.0.1, top-level bindings are supported in GHCi, so OP's code will work without change.
GHCi, version 8.0.1.20161213: http://www.haskell.org/ghc/ :? for help
Prelude> f x = x * 2
Prelude> f 4
8
...
How do I make class methods / properties in Swift?
...associated object tied to the class object. (Only works in classes derived from NSObject.)
private var fooPropertyKey: Int = 0 // value is unimportant; we use var's address
class YourClass: SomeSubclassOfNSObject {
class var foo: FooType? { // Swift 1.1 doesn't have stored class properties;...
Comparing Timer with DispatcherTimer
...er high, until I corrected it with this: timer1.Interval = System.TimeSpan.FromSeconds(1);
– Lonnie Best
Feb 15 '10 at 0:45
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show 2 more co...
What is the difference between `after_create` and `after_save` and when to use which?
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From the docs:
after_create()
Is called after
Base.save on new objects that haven‘t
been saved yet (no record exists).
after_save()
Is called after Base.save
(regardless of whether it‘s a create...
Can I install Python 3.x and 2.x on the same Windows computer?
...the "default" (of the launcher).
Running scripts by calling them directly from the command line will route them through the launcher and parse the shebang (if it exists). You can also explicitly call the launcher and use switches: py -3 mypy2script.py.
All manner of shebangs seem to work
#!C:...
How to check size of a file using Bash?
...
Actually it was an edit from a previous user who thought it was wrong to omit the $
– fstab
May 15 '14 at 8:37
2
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What is %2C in a URL?
...
Another technique that you can use to get the symbol from url gibberish is to open Chrome console with F12 and just paste following javascript:
decodeURIComponent("%2c")
it will decode and return the symbol (or symbols).
Hope this saves you some time.
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arrow operator (->) in function heading
...escribe type of an expression. So you might want to derive the return type from the argument types. So you try:
template <typename T1, typename T2>
decltype(a + b) compose(T1 a, T2 b);
and the compiler will tell you that it does not know what a and b are in the decltype argument. That is be...
Convert array of strings into a string in Java
... 8 and above):
String str = String.join(",", arr);
And if you're coming from the Android angle:
String str = TextUtils.join(",", arr);
You can modify the above depending on what characters, if any, you want in between strings.
You may see near identical code to the pre-Java 8 code but using S...