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parseInt(null, 24) === 23… wait, what?
...o find out what the toString representation of null is. We need to look at Table 13 — ToString Conversions in section 9.8.0 for that information:
Great, so now we know that doing toString(null) internally yields a 'null' string. Great, but how exactly does it handle digits (characters) that are...
Apply multiple functions to multiple groupby columns
...unctions applied to a grouped-by dataframe: pandas.pydata.org/pandas-docs/stable/…
– IanS
May 20 '16 at 8:44
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Read an Excel file directly from a R script
...ow in reading Excel files, and this problem is only exacerbated for larger tables.
Two draws of openxlsx are 1) its extensive other methods (readxl is designed to do only one thing, which is probably part of why it's so fast), especially its write.xlsx function, and 2) (more of a drawback for readx...
100% width Twitter Bootstrap 3 template
...Note that .container-fluid was re-introduced in 3.1.
Full width on mobile/tablet, 1/4 screen on desktop
<div class="container-fluid"> <!-- Adds 15px left/right padding -->
<div class="row"> <!-- Adds -15px left/right margins -->
<div class="col-md-4 col-md-offset-...
Best way to detect Mac OS X or Windows computers with JavaScript or jQuery
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The property is also read-only
I could came up with the following table
Mac Computers
Mac68K Macintosh 68K system.
MacPPC Macintosh PowerPC system.
MacIntel Macintosh Intel system.
iOS Devices
iPhone iPhone.
iPod iPo...
Are the days of passing const std::string & as a parameter over?
...rs. I think people's skepticism and insistence that you have to check your table of compiler support for RVO is mostly obsolete nowadays.
In short, C++11 doesn't really change anything in this regard
Storing Image Data for offline web application (client-side storage database)
... iOS and Android. It looks like it should work though:
var sql = ["CREATE TABLE", idbModules.util.quote(storeName), "(key BLOB", createOptions.autoIncrement ? ", inc INTEGER PRIMARY KEY AUTOINCREMENT" : "PRIMARY KEY", ", value BLOB)"].join(" ")
Source
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Are global variables bad? [closed]
...top of my head is dealing with inherently global objects such as interrupt tables. Things like DB connection seem to be global, but ain't.
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What is the maximum amount of RAM an app can use?
...significant determinant, as larger resolutions mean larger bitmaps, and so tablets and high-resolution phones will tend to have higher values yet. For example, you will see devices with 48MB heaps, and I wouldn't be surprised if there are values higher than that.
How is it possible that apps exc...
What is the difference between a process and a thread?
...s needed to execute a program. A process has a virtual address space, executable code, open handles to system objects, a security context, a unique process identifier, environment variables, a priority class, minimum and maximum working set sizes, and at least one thread of execution. Each process i...