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Efficient way to rotate a list in python
...pend(l.pop(0)). So if you have a deque object to start with, sure it is fastest. Otherwise, use l.append(l.pop(0)).
– Purrell
Jul 4 '17 at 10:03
8
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How do I return NotFound() IHttpActionResult with an error message or exception?
...ing action results is that it makes your action method much easier to unit test. The more properties we put on action results, the more things your unit test needs to consider to make sure the action method is doing what you'd expect.
I often want the ability to provide a custom message as well, so...
Reading file contents on the client-side in javascript in various browsers
...AllBrowsers(document.getElementById("file_upload"), CallBackFunction);
//Tested in Mozilla Firefox browser, Chrome
function ReadFileAllBrowsers(FileElement, CallBackFunction)
{
try
{
var file = FileElement.files[0];
var contents_ = "";
if (file) {
var reader = new FileReader(...
Best way to unselect a in jQuery?
...tr
$("select option").prop("selected", false);
You can see it run a self-test here. Tested on IE 7/8/9, FF 11, Chrome 19.
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Is there a best practice for generating html with javascript
..., instead of the normal :
var s="";
for (var i=0; i < 200; ++i) {s += "testing"; }
use a temporary array:
var s=[];
for (var i=0; i < 200; ++i) { s.push("testing"); }
s = s.join("");
Using arrays is much faster, especially in IE. I did some testing with strings a while ago with IE7, Oper...
How to access the correct `this` inside a callback?
...d inside each function and its value only depends on how the function was called, not how/when/where it was defined. It is not affected by lexical scopes like other variables (except for arrow functions, see below). Here are some examples:
function foo() {
console.log(this);
}
// normal functio...
Animate a custom Dialog
...ion">
<item name="android:windowEnterAnimation">@anim/spin_in</item>
<item name="android:windowExitAnimation">@android:anim/slide_out_right</item>
</style>
</resources>
The windowEnterAnimation is one of my animations and is located in res...
Backbone.js fetch with parameters
... methodMap[method];
// Default JSON-request options.
var params = _.extend({
type: type,
dataType: 'json',
processData: false
}, options);
// Ensure that we have a URL.
if (!params.url) {
params.url = getUrl(model) || urlError();
}
...
Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the
...ot disclosing the exeption details to a publicly released version, but for testing purposes this is a handy tool. Always turn back off when releasing.
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What is the purpose of “&&” in a shell command?
...
See the example:
mkdir test && echo "Something" > test/file
Shell will try to create directory test and then, only if it was successfull will try create file inside it.
So you may interrupt a sequence of steps if one of them failed.
...