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Combine --user with --prefix error with setup.py install
...me workaround:
pip install --user --install-option="--prefix=" <package_name>
or
python setup.py install --user --prefix=
Note that there is no text (not even whitespace) after the =.
Do not forget the --user flag.
Installing multiple packages:
Create ~/.pydistutils.cfg (or equivalent...
Convert a float64 to an int in Go
...onv"
)
func main() {
floats := []float64{1.9999, 2.0001, 2.0}
for _, f := range floats {
t := int(f)
s := fmt.Sprintf("%.0f", f)
if i, err := strconv.Atoi(s); err == nil {
fmt.Println(f, t, i)
} else {
fmt.Println(f, t, err)
}
...
VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
...件打开、保存与关闭)第一部分：五个命令ID： 处理函数ID_FILE_NEW CWinApp::OnFileNewID_FILE_OPEN CWinApp::OnFileOpenID_FILE_SAVE CDocument::OnFileSav...第一部分：
五个命令ID： 处理函数
ID_FILE_NEW CWinApp::OnFileNew
ID_FILE_OPEN CWinApp::OnFileOpen
I...
iPhone: How to get current milliseconds?
...
struct timeval time;
gettimeofday(&time, NULL);
long millis = (time.tv_sec * 1000) + (time.tv_usec / 1000);
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Get a CSS value with JavaScript
...u can use getComputedStyle().
var element = document.getElementById('image_1'),
style = window.getComputedStyle(element),
top = style.getPropertyValue('top');
jsFiddle.
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Update Git submodule to latest commit on origin
...mmary:
# Get the submodule initially
git submodule add ssh://bla submodule_dir
git submodule init
# Time passes, submodule upstream is updated
# and you now want to update
# Change to the submodule directory
cd submodule_dir
# Checkout desired branch
git checkout master
# Update
git pull
# Get...
Cost of len() function
...s, not C terms]: look up "len" in a dictionary and dispatch it to the built_in len function which will look up the object's __len__ method and call that ... all it has to do is return self.length
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How to force use of overflow menu on devices with menu button
...droid.com/apk/res/android" >
<item
android:id="@+id/menu_overflow"
android:icon="@drawable/abs__ic_menu_moreoverflow_normal_holo_light"
android:orderInCategory="11111"
android:showAsAction="always">
<menu>
<item
...
How can I add an item to a SelectList in ASP.net MVC
...irstItem(SelectList list)
{
List<SelectListItem> _list = list.ToList();
_list.Insert(0, new SelectListItem() { Value = "-1", Text = "This Is First Item" });
return new SelectList((IEnumerable<SelectListItem>)_list, "Value", "Text");
}
...
How do I test for an empty JavaScript object?
...N.stringify({});
}
jQuery:
jQuery.isEmptyObject({}); // true
lodash:
_.isEmpty({}); // true
Underscore:
_.isEmpty({}); // true
Hoek
Hoek.deepEqual({}, {}); // true
ExtJS
Ext.Object.isEmpty({}); // true
AngularJS (version 1)
angular.equals({}, {}); // true
Ramda
R.isEmpty({}); //...