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Cannot add or update a child row: a foreign key constraint fails
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123
It means that you're trying to insert into table2 a UserID value that doesn't exist in table1....
When is the thread pool used?
...eUploader: {
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What does “abstract over” mean?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
'npm' is not recognized as internal or external command, operable program or batch file
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Don't forget to reboot your computer after installing node! That one got me.
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How to copy files from 'assets' folder to sdcard?
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This would be concise way in Kotlin.
fun AssetManager.copyRecursively(assetPath: String, targetFile: File) {
val list = list(assetPath)
if (list.isEmpty()) { // assetPath is file
open(assetPath).use { input ->
FileO...
Currency formatting in Python
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@triunenature that would result in $ 123,456.78 sometimes though. Edit: markdown takes out the extra spaces, pretend there's more between the $ and the numbers
– CyberJacob
Jul 25 '16 at 10:40
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Removing empty lines in Notepad++
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123
There is a plugin that adds a menu entitled TextFX. This menu, which houses a dizzying array ...
How does this print “hello world”?
...rt in finding a site (perhaps some Beta StackExchange?) where contributing fun riddles is welcome. Stack Overflow is a Q&A site with a strictly enforced focus.
– Marko Topolnik
Apr 30 '14 at 12:33
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I want to remove double quotes from a String
...n lookaround assertions can be found here
Regex's are very useful (and IMO fun), can be a bit baffeling at first. Here's some more details, and links to resources on the matter.
If you're not very comfortable using regex's just yet, you might want to consider using:
var noQuotes = someStr.split('"'...
Fastest way to implode an associative array with keys
...ll on other data types too)
$str = json_encode($arr);
//output...
[{"id":"123","name":"Ice"},{"id":"234","name":"Cake"},{"id":"345","name":"Pie"}]
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