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parseInt vs unary plus, when to use which?
...ore like parseFloat since it also accepts decimals.
parseInt on the other hand stops parsing when it sees a non-numerical character, like the period that is intended to be a decimal point ..
+'2.3' === 2.3; //true
parseInt('2.3',10) === 2; //true
parseInt and parseFloat parses and bu...
“java.lang.OutOfMemoryError : unable to create new native Thread”
...nder the control of an Executor if at all possible. There are plenty of standard executors with various behavior which your code can easily control.
(There are many reasons why the number of threads is limited, but they vary from operating system to operating system)
...
Can you delete multiple branches in one command with Git?
... be suitable output, while git branch has pretty output with things like * and -> (for symrefs) which can mess you up in scripts/one-liners.
– Cascabel
Sep 8 '10 at 23:05
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What happened to “HelveticaNeue-Italic” on iOS 7.0.3
Just upgraded my iPod touch to iOS 7.0.3 and "HelveticaNeue-Italic" seems to have disappeared. When I query on the phone with:
...
How to use PyCharm to debug Scrapy projects
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The scrapy command is a python script which means you can start it from inside PyCharm.
When you examine the scrapy binary (which scrapy) you will notice that this is actually a python script:
#!/usr/bin/python
from scrapy.cmdline import...
NameValueCollection vs Dictionary [duplicate]
...e .ToLookup(o => [key], o => [value(s)]) if you have duplicate keys, and it should (?) behave like a readonly dictionary.
– drzaus
Mar 10 '15 at 14:31
6
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Toggle Checkboxes on/off
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});
});
Before jQuery 1.6, when we only had attr() and not prop(), we used to write:
checkBoxes.attr("checked", !checkBoxes.attr("checked"));
But prop() has better semantics than attr() when applied to "boolean" HTML attributes, so it is usually preferred in this situation...
Access lapply index names inside FUN
... n=names(x))
Here I use lapply over the indices of x, but also pass in x and the names of x. As you can see, the order of the function arguments can be anything - lapply will pass in the "element" (here the index) to the first argument not specified among the extra ones. In this case, I specify y ...
How to download image using requests
I'm trying to download and save an image from the web using python's requests module.
14 Answers
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Creating an array of objects in Java
I am new to Java and for the time created an array of objects in Java.
8 Answers
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