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Spinlock versus Semaphore
...nter-thread locking using machine dependent assembly instructions (such as test-and-set). It is called a spinlock because the thread simply waits in a loop ("spins") repeatedly checking until the lock becomes available (busy wait). Spinlocks are used as a substitute for mutexes, which are a facility...
YouTube iframe API: how do I control an iframe player that's already in the HTML?
...A: The API doesn't function properly at a local host (file://). Host your (test) page online, or use JSFiddle. Examples: See the links at the top of this answer.
Q: How did you know this?
A: I have spent some time to manually interpret the API's source. I concluded that I had to use the postMessage...
What's the difference between “declare class” and “interface” in TypeScript
... structure.
For example when we have the following interface:
interface test {
foo: number,
bar: string,
}
The objects which we define which have this interface type need to match the interface exactly:
// perfect match has all the properties with the right types, TS compiler will not comp...
Working with select using AngularJS's ng-options
...lready answered, but I wanted to share some more code nevertheless.
In my test I have two listboxes: car makes and car models. The models list is disabled until some make is selected. If selection in makes listbox is later reset (set to 'Select Make') then the models listbox becomes disabled again ...
jquery's append not working with svg element?
...ed as application/xhtml+xml; save with the .xhtml file extension for local testing) to get SVG to work at all. (It kind of makes sense to anyway; SVG is a properly XML-based standard.) This means you'd have to escape the < symbols inside your script block (or enclose in a CDATA section), and incl...
UTF-8: General? Bin? Unicode?
...
Really, I tested saving values like 'é' and 'e' in column with unique index and they cause duplicate error on both 'utf8_unicode_ci' and 'utf8_general_ci'. You can save them only in 'utf8_bin' collated column.
And mysql docs (in http...
Should I use pt or px?
...all. But that isn't to say there won't still be some variation. In a quick test below, the results were slightly more consistent than with keywords but not identical:
Due to the nature of pixel values, they do not cascade. If a parent element has an 18px pixel size and the child is 16px, the chil...
How do I join two SQLite tables in my Android application?
...ng getColumnIndex, You can always calculate the index manually, just debug-test it; 4. "multiple items for the second table" also depends on join type.
– leRobot
Jan 4 '16 at 15:54
...
encryption/decryption with multiple keys
... @Mitch, I posted an answer that may have our answer! (Please test and commend if so/not - MUCH appreciated!)
– pythonlarry
Dec 14 '13 at 9:13
...
How to sort an array in Bash
...arisons, compare wrt file modification time, etc. just use the appropriate test; you can even make it more generic and have it use a first argument that is the test function use, e.g.,
#!/bin/bash
# quicksorts positional arguments
# return is in array qsort_ret
# Note: iterative, NOT recursive! :)...