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for each loop in Objective-C for accessing NSMutable dictionary
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for (NSString* key in xyz) {
id value = xyz[key];
// do stuff
}
This works for every class that conforms to the NSFastEnumeration protocol (available on 10.5+ and iOS), though NSDictionary is one of the few collecti...
How can I check if a View exists in a Database?
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FOR SQL SERVER
IF EXISTS(select * FROM sys.views where name = '')
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How to declare a type as nullable in TypeScript?
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let employe2: Employee = { id: 1, name: 'John', salary: null };
EDIT : For this to work as expected, you should enable the strictNullChecks in tsconfig.
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How to add images in select list?
...ers the only way of doing that would be using some JS widget library, like for example jQuery UI, e.g. using Selectable.
From jQuery UI 1.11, Selectmenu widget is available, which is very close to what you want.
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How to use putExtra() and getExtra() for string data
...an someone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
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Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...e authorized_keys file. ssh localhost should log me in without asking for the password.
30 Answers
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Creating a div element in jQuery [duplicate]
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@Ricki - no, use double-quotes for all attributes. Single quotes do not produce valid XHTML, although most browsers will tolerate it.
– halfer
Oct 22 '11 at 12:21
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Make header and footer files to be included in multiple html pages
...e location as index.html
<a href="http://www.google.com">click here for google</a>
Now, when you visit index.html, you should be able to click the link tags.
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How to get distinct values for non-key column fields in Laravel?
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I have a table "messages" (used for a chat), and I want to get the latest message that the authenticated user has received from each conversation. Using groupBy I can get just one message, but I get the first, and I need the last message. Seems that orderBy...
Why (0-6) is -6 = False? [duplicate]
...s only an implementation detail of CPython and you shouldn't rely on this. For instance, PyPy implemented the id of integer to return itself, so (0-6) is -6 is always true even if they are "different objects" internally; it also allows you to configure whether to enable this integer caching, and eve...