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What does 'wb' mean in this code, using Python?
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That is the mode with which you are opening the file.
"wb" means that you are writing to the file (w), and that you are writing in binary mode (b).
Check out the documentation for more: clicky
share
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Best way to define private methods for a class in Objective-C
... as a private method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called Class Extension. What's unique about a class extension is that the method implementations mu...
What does it mean to start a PHP function with an ampersand?
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An ampersand before a function name means the function will return a reference to a variable instead of the value.
Returning by reference is useful when
you want to use a function to find to
which variable a reference should be
bound. Do not use retur...
Comparing two NumPy arrays for equality, element-wise
... Then the error is clearly on the shapes which have a completely different meaning than having different values. But that probably depends on each use-case
– Juh_
Aug 6 '18 at 9:20
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What is the difference between Int and Integer?
...r no
matter how big, up to the limit of
your machine's memory…. This means you never have
arithmetic overflows. On the other
hand it also means your arithmetic is
relatively slow. Lisp users may
recognise the "bignum" type here.
"Int" is the more common 32 or 64 bit
integer. Imp...
Can you have multiline HTML5 placeholder text in a ?
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Opera: No (tested <= 15.0.1147.72)
Fused with theses statistics, this means that it works on about 88.7% of currently (Oct 2015) used browsers.
Update: Today, it works on at least 94.4% of currently (July 2018) used browsers.
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What does the smiley face “:)” mean in CSS?
... It says "add a non-alphanumeric", not "add one or more...". Or does the : mean something else? Otherwise, can't I put *********************font-size: "150%";, etc.?
– Max
Aug 23 '14 at 15:46
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How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
...table id="debug"></table>
</center>
</body>
Edit:
r means row and w waiting time.
When you initially press start button 80 (or any other number) of concurrent ajax request are launched by javascript, but as is known they are spooled by the browser. Also they are requested to ...
Why is \r a newline for Vim?
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For me the point of confusion is that \r and \n mean different things when used is the search pattern and the replacement pattern.
– dlamblin
Dec 4 '12 at 17:09
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How to get multiple select box values using jQuery?
...select with nothing selected returns null rather than an empty array. This means if you’re programatically adding a selected value, you have a bit of juggling to do to get it right.
– Leo
May 22 '14 at 16:50
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