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Setting environment variables via launchd.conf no longer works in OS m>X m> Yosemite/El Capitan/macOS Sie
...environment.plist file in ~/Library/LaunchAgents/ with this content:
<?m>x m>ml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Label</key>
&l...
Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...ill always produce the same results, whatever the version of Python (both em>x m>isting and, likely, future ones)?
6 Answers
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Fastest way to replace NAs in a large data.table
...alue=0) { v[is.na(v)] = value; v }
for (i in names(dt))
eval(parse(tem>x m>t=paste("dt[,",i,":=na.replace(",i,")]")))
}
system.time(a_gdata = f_gdata(dt1))
user system elapsed
18.805 12.301 134.985
system.time(a_andrie = f_andrie(dt1))
Error: cannot allocate vector of size 305.2 Mb
Timin...
Is there any particular difference between intval and casting to int - `(int) m>X m>`?
...) can be passed a base from which to convert. (int) cannot.
int intval( mim>x m>ed $var [, int $base = 10 ] )
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Remove trailing newline from the elements of a string list
...
Be aware of the following: If you are using Python 3.m>x m> and you want to return a list, you have to list, so that it's list(map(str.strip, my_list)). Also check that out: link.
– So S
Dec 1 '15 at 21:31
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JavaScript, elegant way to check nested object properties for null/undefined [duplicate]
...urse of using the app this gets populated. Let's say somwhere, after an AJAm>X m> call or something i do this:
4 Answers
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Download multiple files with a single action
...port more than one file download at once.
There are two solutions:
Open m>x m> amount of windows to initiate the file downloads (this would be done with JavaScript)
preferred solution create a script to zip the files
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Finding quaternion representing the rotation from one vector to another
...
Quaternion q;
vector a = crossproduct(v1, v2);
q.m>x m>yz = a;
q.w = sqrt((v1.Length ^ 2) * (v2.Length ^ 2)) + dotproduct(v1, v2);
Don't forget to normalize q.
Richard is right about there not being a unique rotation, but the above should give the "shortest arc," which is pro...
HTML5 Pre-resize images before uploading
...function(e) {img.src = e.target.result}
reader.readAsDataURL(file);
var ctm>x m> = canvas.getContem>x m>t("2d");
ctm>x m>.drawImage(img, 0, 0);
var MAm>X m>_WIDTH = 800;
var MAm>X m>_HEIGHT = 600;
var width = img.width;
var height = img.height;
if (width > height) {
if (width > MAm>X m>_WIDTH) {
height *= MAm>X m>_WIDT...
C++ deprecated conversion from string constant to 'char*'
...conversion from const char* to char* is generally not possible without an em>x m>plicit cast for safety reasons. But for backwards compatibility with C the language C++ still allows assigning a string literal to a char* and gives you a warning about this conversion being deprecated.
So, somewhere you ar...