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Get the current first responder without using a private API
...eturn the first responder.
@implementation UIView (FindFirstResponder)
- (id)findFirstResponder
{
if (self.isFirstResponder) {
return self;
}
for (UIView *subView in self.subviews) {
id responder = [subView findFirstResponder];
if (responder) return respo...
How do I partially update an object in MongoDB so the new object will overlay / merge with the exist
... data then?
You know you can do the following:
db.collection.update( { _id:...} , { $set: someObjectWithNewData }
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TypeScript sorting an array
...turn -1;
}
return 0;
}
Could also make the values inside as variables n1[field] vs n2[field] if its more dynamic, just keep the diff between strings and numbers.
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Storyboard - refer to ViewController in AppDelegate
consider the following scenario: I have a storyboard-based app. I add a ViewController object to the storyboard, add the class files for this ViewController into the project and specify the name of the new class in the IB identity inspector. Now how am I going to refer to this ViewController program...
How to use the toString method in Java?
... easy for a person to read. It is
recommended that all subclasses
override this method.
The toString method for class Object
returns a string consisting of the
name of the class of which the object
is an instance, the at-sign character
`@', and the unsigned hexadecimal
representa...
Best way to use multiple SSH private keys on one client
...it usage within the same server). I tried simply stacking the keys in the id_rsa files to no avail.
20 Answers
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Programmatically change the src of an img tag
...
Give your img tag an id, then you can
document.getElementById("imageid").src="../template/save.png";
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How to link to apps on the app store
I am creating a free version of my iPhone game. I want to have a button inside the free version that takes people to the paid version in the app store. If I use a standard link
...
How to center horizontally div inside parent div
How do I center a div horizontally inside its parent div with CSS ?
5 Answers
5
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Create and append dynamically
...g to create a <div> dynamically, with an appended <div> inside. I have this so far which works:
9 Answers
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