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In Objective-C, how do I test the object type?
I need to test whether the object is of type NSString or UIImageView . How can I accomplish this? Is there some type of "isoftype" method?
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Create Django model or update if exists
...a value that evaluates
to True (i.e., a value other than None or the empty string), Django
executes an UPDATE. If the object’s primary key attribute is not set
or if the UPDATE didn’t update anything, Django executes an INSERT.
It's worth noting that when they say 'if the UPDATE didn't update a...
json_encode() escaping forward slashes
...ript> tags it's necessary as a </script> anywhere - even inside a string - will end the script tag.
Depending on where the JSON is used it's not necessary, but it can be safely ignored.
share
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PHP Timestamp into DateTime
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You don't need to turn the string into a timestamp in order to create the DateTime object (in fact, its constructor doesn't even allow you to do this, as you can tell). You can simply feed your date string into the DateTime constructor as-is:
// Assu...
'any' vs 'Object'
...rror: c neither has doSomething nor inherits it from Object
and why
a.toString(); // Ok: whatever, dude, have it your way
b.toString(); // Ok: toString is defined in Object
c.toString(); // Ok: c inherits toString from Object
So Object and {} are equivalents in TypeScript.
If you declare funct...
How to make an element in XML schema optional?
...
Try this
<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="1" />
if you want 0 or 1 "description" elements, Or
<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="unbounded" />
if you want 0 to infinity number of "de...
How to create and write to a txt file using VBA
...andling files and folders
Public Sub SaveTextToFile()
Dim filePath As String
filePath = "C:\temp\MyTestFile.txt"
' The advantage of correctly typing fso as FileSystemObject is to make autocompletion
' (Intellisense) work, which helps you avoid typos and lets you discover other usef...
Android: integer from xml resource
...e do I have to create, to access integer values in the same way you access string values with R.string.some_string_resource ?
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ViewPager with previous and next page boundaries
...ragmentActivity {
ViewPager pager;
MyPageAdapter obj_adapter;
String str_device;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
init();
}
private void i...
Base64: What is the worst possible increase in space usage?
If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
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