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How many system resources will be held for keeping 1,000,000 websocket open? [closed]
...ns and what server resources would this consume? The answer is complicated by several factors, but 1,000,000 simultaneous active socket connections is possible for a properly sized system (lots of CPU, RAM and fast networking) and with a tuned server system and optimized server software.
The number...
IntelliJ 13 - Add Navigate Back/Forward to toolbar?
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For some reason the toolbar is not visible by default.
In the View menu, select Toolbar. That should fix it.
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Accessing the logged-in user in a template
...example, filter function default('') should be nice when user is NOT login by just avoid annoying error message.
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Git Commit Messages: 50/72 Formatting
...ns refers mainly to “non-prose” text, that is, text that was not typed by a human for the commit — for example, compiler error messages.
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Replace Default Null Values Returned From Left Outer Join
...d ON t.id = d.item
Also, you can use multiple columns to check their NULL by COALESCE function.
For example:
mysql> SELECT COALESCE(NULL, 1, NULL);
-> 1
mysql> SELECT COALESCE(0, 1, NULL);
-> 0
mysql> SELECT COALESCE(NULL, NULL, NULL);
-> NULL
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css - position div to bottom of containing div
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absolute searches for the nearest relative parent. By default it's the body of the document. So if no parent DOM object (.outside) has the property of being relative your .inside will go to to the bottom of the body tag.
– user1467267
Ma...
Convert a list to a dictionary in Python
...ip(i, i))
In Python 3 you could also use a dict comprehension, but ironically I think the simplest way to do it will be with range() and len(), which would normally be a code smell.
b = {a[i]: a[i+1] for i in range(0, len(a), 2)}
So the iter()/izip() method is still probably the most Pythonic i...
Why can I access private variables in the copy constructor?
...class X, you're encoding not just how an individual X x object can be used by code with access to it, but also how:
derived classes are able to interact with it (through optionally-pure virtual functions and/or protected access), and
distinct X objects cooperate to provide intended behaviours whil...
How Do I Convert an Integer to a String in Excel VBA?
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CStr(45) is all you need (the Convert String function)
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Print “hello world” every X seconds
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@TimBender Just wondering whether OP really got his task done with this ;) Anyways, now I would prefer to use ExecutorService for these tasks. That is really a big improvement over traditional Thread API. Just didn't used it at the time of answering.
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