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What does the '.' (dot or period) in a Go import statement do?
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Here's an analogy for those coming from Python:
Go's import "os" is roughly equivalent to Python's import os
Go's import . "os" is roughly equivalent to Python's from os import *
In both languages, using the latter is generally frowned upon but there can b...
What's the difference between F5 refresh and Shift+F5 in Google Chrome browser?
...web browsers.
F5 refreshes the web page and often reloads the same page from the cached contents of the web browser. However, reloading from cache every time is not guaranteed and it also depends upon the cache expiry.
Shift + F5 forces the web browser to ignore its cached contents and retrieve ...
iphone ios running in separate thread
...cessing
});
});
If you haven't done so already, check out the videos from WWDC 2010 on libdispatch/GCD/blocks.
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How does one make random number between range for arc4random_uniform()?
... the total random-phile, here's an extension that returns a random element from any Collection type object. Note this uses the above function to generate its index so you will need both.
extension Collection {
func randomItem() -> Self.Iterator.Element {
let count = distance(from: st...
Should I use an exception specifier in C++?
...is always better to let the application crash with an unhandled exception, from which you can retrieve a stack-trace, than to silently/violently die.
Write code that returns common errors and throws on exceptional occasions.
Error e = open( "bla.txt" );
if( e == FileNotFound )
MessageUser( "Fil...
Detect when browser receives file download
...er;
var attempts = 30;
// Prevents double-submits by waiting for a cookie from the server.
function blockResubmit() {
var downloadToken = setFormToken();
setCursor( "wait", "wait" );
downloadTimer = window.setInterval( function() {
var token = getCookie( "downloadToken" );
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When to dispose CancellationTokenSource?
...he current answers were satisfactory. After researching I found this reply from Stephen Toub (reference):
It depends.
In .NET 4, CTS.Dispose served two primary purposes. If the
CancellationToken's WaitHandle had been accessed (thus lazily
allocating it), Dispose will dispose of that handle. Addit...
Is there a good way to attach JavaScript objects to HTML elements?
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From my experience the reason this can be bad is possible memory leaks. There might be an easy way to avoid it, but when I made a design that used this heavily it had many memory leaks. I think you have to be extra careful ...
Stopping fixed position scrolling at a certain point?
...ant the element to stop scrolling at a certain point, say when it is 250px from the top of the page, is this possible? Any help or advice would be helpful thanks!
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POST JSON to API using Rails and HTTParty
...to authenticate and get a token and then submit the ticket with the token. From squishlist.
2 Answers
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