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What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
..... which in the majority case is going to be a a runtime array. You can avoid the overhead of looking for the global constructor by just using []. It may seem small, but when you're shooting for near real-time performance in your app, it can make a difference.
– coderjoe
...
JavaScript checking for null vs. undefined and difference between == and ===
...gned some other value, as the value of function arguments that weren't provided when the function was called, and as the value you get when you ask an object for a property it doesn't have. But it can also be explicitly used in all of those situations. (There's a difference between an object not hav...
.gitignore exclude files in directory but not certain directories
...
you can put a .gitignore file in each of it (like mipadi said) or make something like that on your root .gitingnore file
/assets/*/
/assets/*.*
it works fine for me
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impro...
How should I write tests for Forms in Django?
...st the form and not the view where the form is rendered. Example to get an idea:
from django.test import TestCase
from myapp.forms import MyForm
class MyTests(TestCase):
def test_forms(self):
form_data = {'something': 'something'}
form = MyForm(data=form_data)
self.asse...
Return only string message from Spring MVC 3 Controller
...is another way:
@RequestMapping(value="/controller", method=GET)
public void foo(HttpServletResponse res) {
try {
PrintWriter out = res.getWriter();
out.println("Hello, world!");
out.close();
} catch (IOException ex) {
...
}
}
but the first meth...
Post an empty body to REST API via HttpClient
...methods which does not require a HttpContent class? Should we at least provide something (even an empty string) to make a http post?
– tugberk
Jan 30 '12 at 10:28
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AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
...g-init="rootFolders='Bob'") works fine.
– Kaizar Laxmidhar
Sep 11 '14 at 13:24
And how do I set the default value if I...
Is there a way to do method overloading in TypeScript?
...checking too and TypeScript tries to not modify actual method bodies to avoid any unnecessary runtime performance cost.
If I understand it correctly, you have to first write a method declaration for each of the overloads and then one method implementation that checks its arguments to decide which o...
Regex: Specify “space or start of string” and “space or end of string”
...
\b is a zero-width assertion; it never consumes any characters. There's no need to wrap it in a lookaround.
– Alan Moore
Jul 15 '11 at 21:41
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What is the difference between “Include Directories” and “Additional Include Directories”
...but points out that you should now change it in your project settings. A side-effect of the build engine overhaul in VS2010, enabling building with msbuild. Removing the per-project settings would have been logical but that would break too many existing projects.
As such, it is probably best to t...