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Is there a way to check if WPF is currently executing in design mode or not?
...e know of some global state variable that is available so that I can check if the code is currently executing in design mode (e.g. in Blend or Visual Studio) or not?
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How to avoid 'cannot read property of undefined' errors?
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Update:
If you use JavaScript according to ECMAScript 2020 or later, see optional chaining.
TypeScript has added support for optional chaining in version 3.7.
// use it like this
obj?.a?.lot?.of?.properties
Solution for JavaScr...
How to create a sequence of integers in C#?
... Note: This creates a sequence starting at 0 with 10 items (ending at 9). If you want 0 through 10, the second parameter would be 11. And if you need an actual array and not IEnumerable<int>, include a call .ToArray().
– Anthony Pegram
Jan 3 '11 at 22:11...
How to process each line received as a result of grep command
...ere are variations on this scheme depending on exactly what you're after.
If you need to change variables inside the loop (and have that change be visible outside of it), you can use process substitution as stated in fedorqui's answer:
while read -r line ; do
echo "Processing $line"
# your...
C# HttpWebRequest vs WebRequest
...exists only on WebRequest. Calling it as HttpWebRequest.Create might look different, but its actually compiled down to calling WebRequest.Create. It only appears to be on HttpWebRequest because of inheritance.
The Create method internally, uses the factory pattern to do the actual creation of objec...
How to exclude a directory in find . command
... run a find command for all JavaScript files, but how do I exclude a specific directory?
38 Answers
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How to return an array from JNI to Java?
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If you've examined the documentation and still have questions that should be part of your initial question. In this case, the JNI function in the example creates a number of arrays. The outer array is comprised of an 'Objec...
Find substring in the string in TWIG
I want to find substring of the string or check if there is no such substring using Twig. On the words, I need analogue of 'strstr' or 'strpos' in php.
I googled and searched this issue in stackoverflow but nothing found. Does someone know how to solve this problem?
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How do I perform an IF…THEN in an SQL SELECT?
How do I perform an IF...THEN in an SQL SELECT statement?
30 Answers
30
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MySQL foreign key constraints, cascade delete
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If your cascading deletes nuke a product because it was a member of a category that was killed, then you've set up your foreign keys improperly. Given your example tables, you should have the following table setup:
CREATE TA...