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Grasping the Node JS alternative to multithreading
...l make limited use of another core for the thread pool, for example if you do a non-blocking file system read this is likely implemented by telling a thread from the thread pool to perform a read and set a callback when it's done which means that the read could be happening on a different thread/cor...
Delete all Duplicate Rows except for One in MySQL? [duplicate]
...Editor warning: This solution is computationally inefficient and may bring down your connection for a large table.
NB - You need to do this first on a test copy of your table!
When I did it, I found that unless I also included AND n1.id <> n2.id, it deleted every row in the table.
If you ...
How to achieve code folding effects in Emacs?
...y with emacs, as it has tools that explicitly implement the actions people do manually when folding code.
Most people have good success with simple incremental searches. See "foo" mentioned somewhere? Type C-sfoo, find the definition, press enter, read it, and then press C-x C-x to go back to wher...
How can I loop through a C++ map of maps?
... are outdated as of C++11 - you can use a ranged based for loop and simply do:
std::map<std::string, std::map<std::string, std::string>> mymap;
for(auto const &ent1 : mymap) {
// ent1.first is the first key
for(auto const &ent2 : ent1.second) {
// ent2.first is the seco...
How to create EditText with cross(x) button at end of it?
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this is a inefficient way of doing it. yanchenko's answer is right approach of using compound drawables.
– numan salati
Apr 10 '13 at 15:48
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Send string to stdin
Is there a way to effectively do this in bash:
6 Answers
6
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Ruby : How to write a gem? [closed]
...re any good tutorials, screencasts, etc., which helped you learning how to do it ?
3 Answers
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Detect if an element is visible with jQuery [duplicate]
... a reputation for being quite a slow selector as it has to traverse up the DOM tree inspecting a bunch of elements. There's good news for jQuery 3, however, as this post explains (Ctrl + F for :visible):
Thanks to some detective work by Paul Irish at Google, we identified some cases where we could ...
Create Windows service from executable
Is there any quick way to, given an executable file, create a Windows service that, when started, launches it?
8 Answers
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Deep copy of a dict in python
... a deep copy of a dict in python. Unfortunately the .deepcopy() method doesn't exist for the dict . How do I do that?
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