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Spark java.lang.OutOfMemoryError: Java heap space
...is larger than a few k or more than an MB, you may have a memory leak. See https://stackoverflow.com/a/25270600/1586965
Related to above; use broadcast variables if you really do need large objects.
If you are caching large RDDs and can sacrifice some access time consider serialising the RDD http://...
How to check a string for specific characters?
...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...
Removing items from a list [duplicate]
...sure if you're free to add dependencies, but if you can, you could add the https://code.google.com/p/guava-libraries/ as a dependency. This library adds support for many basic functional operations to Java and can make working with collections a lot easier and more readable.
In the code I replaced ...
AngularJS - Value attribute on an input text box is ignored when there is a ng-model used?
...text" ng-model="rootFolders" ng-init="rootFolders='Bob'" value="Bob">
https://groups.google.com/d/msg/angular/Hn3eztNHFXw/wk3HyOl9fhcJ
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Hyphen, underscore, or camelCase as word delimiter in URIs?
... a good standard. Now that takes a camel case out of the window.
Source: https://metamug.com/article/rest-api-naming-best-practices.html#word-delimiters
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How do you specify that a class property is an integer?
...er of different ways you can create "marked" types. Here's a good article: https://michalzalecki.com/nominal-typing-in-typescript/
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What are the options for storing hierarchical data in a relational database? [closed]
...the stored procedure and how I came up with it is explained here in DBA SE
https://dba.stackexchange.com/q/89051/41481
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NOW() function in PHP
... gives the dateTime value in this format: 'YYYY-MM-DD HH:MM:SS'. See here: https://dev.mysql.com/doc/refman/8.0/en/date-and-time-functions.html#function_now.
An interesting fact is that it's possible to get the datetime format by running this query: SHOW VARIABLES LIKE 'd%e_format', the result cou...
test a file upload using rspec - rails
...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...
Proper way to handle multiple forms on one page in Django
...he answers by @adam-nelson and @daniel-sokolowski and comment by @zeraien (https://stackoverflow.com/a/17303480/2680349):
# views.py
def _get_form(request, formcls, prefix):
data = request.POST if prefix in request.POST else None
return formcls(data, prefix=prefix)
class MyView(TemplateVie...