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How do you format an unsigned long long int using printf?
...uments are passed to printf without any type information, so if the format string is incorrect, the result is unpredictable.
– dmitrii
Jan 23 '12 at 23:10
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Setting WPF image source in code
... some method or class that the XAML parser uses to convert the simple path string to an ImageSource? Couldn't we just use that?
– Qwertie
Jun 2 '11 at 16:48
1
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Python “extend” for a dictionary
...li
Note: In Python 3, this will only work if every key in basket_two is a string.
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How to check for null in Twig?
...NULL, and not any other value that evaluates to false (such as zero, empty string and empty array). Besides, it will cause an error if var is not defined. A safer way would be:
{% if var is not defined or var is null %}
which can be shortened to:
{% if var|default is null %}
If you don't provi...
How does HashSet compare elements for equality?
...c class Employe
{
public Employe() {
}
public string Name { get; set; }
public override string ToString() {
return Name;
}
public override bool Equals(object obj) {
return this.Name.Equals(((Employe)obj).Name);
}...
What is a sealed trait?
...ealed trait is
JSON.
A JSON value can only be JSON null, boolean, number, string, array, or dictionary.
JSON has not changed in 20 years, so it is unlikely that anyone will need to extend our JSON
with additional subclasses.
While the set of sub-classes is fixed, the range of operations we may want...
Save An Image To Application Documents Folder From UIView On IOS
...thForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsPath = [paths objectAtIndex:0]; //Get the docs directory
NSString *filePath = [documentsPath stringByAppendingPathComponent:@"image.png"]; //Add the file name
[pngData writeToFile:filePath atomically:YES]; /...
Is there a difference between x++ and ++x in java?
...you javac this Y.java class:
public class Y {
public static void main(String []args) {
int y = 2;
y = y++;
}
}
and javap -c Y, you get the following jvm code (I have allowed me to comment the main method with the help of the Java Virtual Machine Specification):
public cla...
Are HTML comments inside script tags a best practice? [closed]
... page :
Commenting scripts in JavaScript The JavaScript engine allows the string "<!--" to occur at the start of a SCRIPT element, and ignores further characters until the end of the line. JavaScript interprets "//" as starting a comment extending to the end of the current line. This is needed t...
What's the role of adapters in Android?
...}
void manyMoreMethods(){}
}
Lets define an adapter:
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, values);
First parameter: Context
Second parameter: Layout for the row
Third parameter: ID of the TextVi...