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What are the precise rules for when you can omit parenthesis, dots, braces, = (functions), etc.?
...ou can't do this either:
list tail length
You could use infix notation by using parenthesis to mark end of expressions:
(list tail) map (...)
(list tail) length
Note that postfix notation is discouraged because it may be unsafe.
I hope this has cleared all the doubts. If not, just drop a c...
Go to back directory browsing after opening file in vim
When I open a directory browsing in vim, I can open a file by moving the cursor to a file name and pressing Enter .
7 Ans...
What arguments are passed into AsyncTask?
...oogle's Android Documentation Says that :
An asynchronous task is defined by 3 generic types, called Params, Progress and Result, and 4 steps, called onPreExecute, doInBackground, onProgressUpdate and onPostExecute.
AsyncTask's generic types :
The three types used by an asynchronous task are the...
Use of 'prototype' vs. 'this' in JavaScript?
...ia the instance's private [[Prototype]] property.
A function's this is set by how the function is called or by the use of bind (not discussed here). Where a function is called on an object (e.g. myObj.method()) then this within the method references the object. Where this is not set by the call or b...
Why does volatile exist?
...ity to the programmer to provide that information. What you're claiming to by a buggy compiler is really just bad programming.
– iheanyi
Jul 17 '18 at 19:54
1
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How do I raise the same Exception with a custom message in Python?
..."test.py", line 2, in <module>
1 / 0
ZeroDivisionError: division by zero
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "test.py", line 4, in <module>
raise Exception('Smelly socks') from e
Exception: Smelly socks
...
Microsecond timing in JavaScript
...is guaranteed to always be monotonically increasing, so it is not affected by the OS's system time -- it will always be wall-clock time (assuming your wall clock is not atomic...).
now() can be used in almost every place that new Date.getTime(), + new Date and Date.now() are. The exception is tha...
Prevent segue in prepareForSegue method?
...
FYI, if the segue is triggered programmatically by calling [self performSegueWithIdentifier:@"segueIdentifier" sender:nil]; shouldPerformSegueWithIdentifier will never get called.
– The dude
Aug 6 '13 at 9:20
...
What's the point of map in Haskell, when there is fmap?
...e right way to solve the problem.
Haskell 98 is seen as a step backwards by some Haskellers (including me), previous versions having defined a more abstract and consistent library. Oh well.
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What Makes a Method Thread-safe? What are the rules?
...tic) then you need to use locks to ensure that the values are not modified by a different thread.
public class Thing
{
private string someValue; // all threads will read and write to this same field value
public int NonThreadSafeMethod(string parameter1)
{
this.someValue = para...