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How can I check for “undefined” in JavaScript? [duplicate]
... now!");
};
Bottom line, the "it can be redefined" argument to not use a raw === undefined is bogus.
(If you are still scared of undefined being redefined, why are you blindly integrating untested library code into your code base? Or even simpler: a linting tool.)
Also, like the typeof approa...
Which is the preferred way to concatenate a string in Python?
...f you want to comment on part of a string (as above) or if you want to use raw strings or triple quotes for part of a literal but not all.
Since this happens at the syntax layer it uses zero concatenation operators.
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Convert UTC datetime string to local datetime
...r Joe's answer. Technically your answer explains exactly how to do it with raw python (which is good to know), but the library he suggested gets me to a solution much quicker.
– MattoTodd
Jan 23 '11 at 4:03
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How do I address unchecked cast warnings?
...g a new map with the generic types is pointless as you could still make it raw and put whatever.
– MetroidFan2002
Mar 6 '14 at 20:22
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Beyond Stack Sampling: C++ Profilers
... visualization has pointed out the offending function(s), jump back to the raw profile data to get better hints on what the real cause is.
The gprof2dot tool generates a dot graph description that you then feed into a graphviz tool. The output is basically a callgraph with functions color coded by ...
A non-blocking read on a subprocess.PIPE in Python
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Absolutely brilliant. Much easier than the raw subprocess module. Works perfectly for me on Ubuntu.
– Cerin
Dec 2 '10 at 12:30
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How can I improve my paw detection?
...the data for each paw with [data[x] for x in data_slices]. Instead, we'll draw a rectangle based on these slices, which takes slightly more work.
The two animations below show your "Overlapping Paws" and "Grouped Paws" example data. This method seems to be working perfectly. (And for whatever i...
How to open, read, and write from serial port in C?
...ust copy and paste the bits needed into each project.
You must call cfmakeraw on a tty obtained from tcgetattr. You cannot zero-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especi...
What is the difference between string primitives and String objects in JavaScript?
...itive data type. It has no methods, it is nothing more than a pointer to a raw data memory reference, which explains the much faster random access speed.
So what happens when you do s.charAt(i) for instance?
Since s is not an instance of String, JavaScript will auto-box s, which has typeof string ...
Difference between InvariantCulture and Ordinal string comparison
...and so on).
Ordinal
On the other hand, looks purely at the values of the raw byte(s) that represent the character.
There's a great sample at http://msdn.microsoft.com/en-us/library/e6883c06.aspx that shows the results of the various StringComparison values. All the way at the end, it shows (...