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Objective-C: difference between id and void *
... will cause premature reaping of objects if _superPrivateDoNotTouch is actually an object. Don't do that.
attempting to invoke a method on a reference of void * type will barf up a compiler warning.
attempting to invoke a method on an id type will only warn if the method being called has not been d...
What type of hash does WordPress use?
...
I don't know if this will help at all, but WP will still take the straight MD5 the first time you used the Password, then it will "salt" it. SO, if you have access to the DB, using MyPHPAdmin you can change the PW to "MyPass", select MD5 in the "Function" dro...
How to change Navigation Bar color in iOS 7?
... Guide
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
// iOS 6.1 or earlier
self.navigationController.navigationBar.tintColor = [UIColor redColor];
} else {
// iOS 7.0 or later
self.navigationController.navigationBar.barTintCo...
Postgresql GROUP_CONCAT equivalent?
...dited Sep 14 '17 at 20:37
Ariel Allon
71211 gold badge99 silver badges1515 bronze badges
answered Apr 1 '10 at 14:55
...
How to return a 200 HTTP Status Code from ASP.NET MVC 3 controller
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200 is just the normal HTTP header for a successful request. If that's all you need, just have the controller return new EmptyResult();
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Html5 data-* with asp.net mvc TextboxFor html attributes
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You could use underscore (_) and the helper is intelligent enough to do the rest:
@Html.TextBoxFor(
model => model.Country.CountryName,
new { data_url = Url.Action("CountryContains", "Geo") }
)
And for those who want to achieve the same...
Error installing mysql2: Failed to build gem native extension
I am having some problems when trying to install mysql2 gem for Rails. When I try to install it by running bundle install or gem install mysql2 it gives me the following error:
...
Read/Write String from/to a File in Android
... I think, closing streams should be in the final block as in @SharkAlley answer
– Yurii K
Jul 29 '15 at 14:41
4
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Difference between getDefaultSharedPreferences and getSharedPreferences
...es a default preference-file name. This default is set per application, so all activities in the same app context can access it easily as in the following example:
SharedPreferences spref = PreferenceManager.getDefaultSharedPreferences(this);
if (spref.contains("email")) {
String sEmailAdd...
How do I pass the this context to a function?
...
Javascripts .call() and .apply() methods allow you to set the context for a function.
var myfunc = function(){
alert(this.name);
};
var obj_a = {
name: "FOO"
};
var obj_b = {
name: "BAR!!"
};
Now you can call:
myfunc.ca...