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Using Git with an existing Xcode project
...ject that I want to put into the repository. I think I have the repository set up correctly under organizer, but the Source Control menu is grayed out.
Apparently, it's easy to do if you start a new project, but how do I import an existing project with snapshots and everything?
...
Android studio using > 100% CPU at all times - no background processes appear to be running
... I can't seem to find this "Background" menu. I perform a search in the Settings but it won't show, but when I do a Search All through the Shift keys I can see them, but clicking on them leads me nowhere. Might it be disabled?
– John Ernest Guadalupe
Jul 6 '...
MySQL Data - Best way to implement paging?
...pared statements).
With two arguments, the first argument specifies the offset of the first row to return, and the second specifies the maximum number of rows to return. The offset of the initial row is 0 (not 1):
SELECT * FROM tbl LIMIT 5,10; # Retrieve rows 6-15
To retrieve all rows from a certa...
How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
...);
//and check it against the stored value:
$sessionMessageIdent = isset($_SESSION['messageIdent'])?$_SESSION['messageIdent']:'';
if($messageIdent!=$sessionMessageIdent){//if its different:
//save the session var:
$_SESSION['messageIdent'] = $messageIdent;
...
How to get the current time as datetime
... choose which date and time components are needed
let requestedComponents: Set<Calendar.Component> = [
.year,
.month,
.day,
.hour,
.minute,
.second
]
// get the components
let dateTimeComponents = userCalendar.dateComponents(requestedComponents, from: currentDateTime)
...
How do I get time of a Python program's execution?
...k size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 9480
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 0
Minor (reclaiming a frame) page faults: 1114
Voluntary context switches: 0
Involuntary context switches: 2...
What is the purpose of mock objects?
...acts.
http://en.wikipedia.org/wiki/Mock_object
Mock objects allow you to set up test scenarios without bringing to bear large, unwieldy resources such as databases. Instead of calling a database for testing, you can simulate your database using a mock object in your unit tests. This frees you fr...
Is an empty href valid?
...onsider: it will not be keyboard-focusable without having a tabindex value set. Furthermore, this will be inaccessible to screenreader software using Internet Explorer, as IE will report through the accessibility interfaces that any anchor element without an href attribute as not-focusable, regardle...
Center Oversized Image in Div
...
.parent {
position: relative;
overflow: hidden;
//optionally set height and width, it will depend on the rest of the styling used
}
.child {
position: absolute;
top: -9999px;
bottom: -9999px;
left: -9999px;
right: -9999px;
margin: auto;
}
...
When is del useful in python?
...
Deleting a variable is different than setting it to None
Deleting variable names with del is probably something used rarely, but it is something that could not trivially be achieved without a keyword. If you can create a variable name by writing a=1, it is nice ...