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What does 'wb' mean in this code, using Python?
...Since you are writing a .jpg file, it looks fine.
But if you supposed to read that jpg file you need to use 'rb'
More info
On Windows, 'b' appended to the mode
opens the file in binary mode, so
there are also modes like 'rb', 'wb',
and 'r+b'. Python on Windows makes a
distinction betw...
How to use the toString method in Java?
... a concise but
informative representation that is
easy for a person to read. It is
recommended that all subclasses
override this method.
The toString method for class Object
returns a string consisting of the
name of the class of which the object
is an instance, the at-sign chara...
How to replace an entire line in a text file by line number
... Useless for the interpreter/compiler maybe, but not for a human reading it. @Kyle's code reads nicely left to right; the idiom you used IMO does not, due to the fact that the verb is before the noun.
– Clayton Stanley
Jun 23 '12 at 1:43
...
jQuery to retrieve and set selected option value of html select element
...he id's are correct and your dom validates then the following applies:
To Read Select Option Value
$('#selectId').val();
To Set Select Option Value
$('#selectId').val('newValue');
To Read Selected Text
$('#selectId>option:selected').text();
...
Where is the C auto keyword used?
In my college days I read about the auto keyword and in the course of time I actually forgot what it is. It is defined as:
...
What is the difference between an abstract function and a virtual function?
...anything in the MSDN documentation.(I had a headache after five minutes of reading this: msdn.microsoft.com/en-us/library/aa645767(v=vs.71).aspx)
– Jake
Nov 1 '11 at 15:49
...
Detecting an undefined object property
... it had accidentally been redefined. In modern JavaScript, the property is read-only.
However, in modern JavaScript, "undefined" is not a keyword, and so variables inside functions can be named "undefined" and shadow the global property.
If you are worried about this (unlikely) edge case, you can...
How to 'minify' Javascript code
...
console.log([1,3,5,8,9].indexOf(a)!=-1?'yes':'no');
but indexOf is slow read this https://stackoverflow.com/a/30335438/2450730
numbers
1000000000000
//same as
1e12
var oneDayInMS=1000*60*60*24;
//same as
var oneDayInMS=864e5;
var a=10;
a=1+a;
a=a*2;
//same as
a=++a*2;
Some nice articles/si...
Change date of git tag (or GitHub Release based on it)
... 0.9.33 -m"Retroactively tagging version 0.9.33"
However, if you have already added the tag, you cannot use the above with git tag -f existingtag or else git will complain when you try to merge:
Rammy:docubot phrogz$ git push --tags
To git@github.com:Phrogz/docubot.git
! [rejected] 1.0.1...
How to convert a file into a dictionary?
... flow or by an exception) there file will be automatically closed. You can read more about context-managers in Python here: effbot.org/zone/python-with-statement.htm
– Vlad H
Jan 26 '11 at 11:49
...