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Equivalent of .try() for a hash to avoid “undefined method” errors on nil? [duplicate]
In Rails we can do the following in case a value doesn't exist to avoid an error:
12 Answers
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Send data from activity to fragment in Android
...ragobj.setArguments(bundle);
and in Fragment onCreateView method:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String strtext = getArguments().getString("edttext");
return inflater.inflate(R.layout.fragment, cont...
How can I trigger a Bootstrap modal programmatically?
...anually do it.
$('#myModal').modal({ show: false})
Where myModal is the id of the modal container.
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MongoDB SELECT COUNT GROUP BY
...er way to do it using aggregate:
db.contest.aggregate([
{"$group" : {_id:"$province", count:{$sum:1}}}
])
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dynamically add and remove view to viewpager
...resent it here since I see a lot of people have struggled with this and I didn't see any other relevant answers.
First, here's my adapter; hopefully comments within the code are sufficient:
public class MainPagerAdapter extends PagerAdapter
{
// This holds all the currently displayable views, i...
angular.element vs document.getElementById or jQuery selector with spin (busy) control
...like that:
var myElement = angular.element( document.querySelector( '#some-id' ) );
You wrap the Document.querySelector() native Javascript call into the angular.element() call. So you always get the element in a jqLite or jQuery object, depending whether or not jQuery is available/loaded.
Official...
How To Set Text In An EditText
...TextView.BufferType. For example:
EditText editText = (EditText)findViewById(R.id.edit_text);
editText.setText("Google is your friend.", TextView.BufferType.EDITABLE);
It also inherits TextView's setText(CharSequence) and setText(int) methods, so you can set it just like a regular TextView:
edit...
Drawing a connecting line between two elements [closed]
... the Flowchart demo.
It is available in a free Community edition, and a paid Toolkit edition.
The Toolkit edition wraps the Community edition with a comprehensive data binding layer, as well as several UI widgets for building applications and integrations for popular libraries, and is commercia...
Detect when browser receives file download
...figure out how to detect when the browser has received the file, so I can hide the indicator.
22 Answers
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Scroll Element into View with Selenium
...enium 1.x or 2.x to scroll the browser window so that a particular element identified by an XPath is in view of the browser? There is a focus method in Selenium, but it does not seem to physically scroll the view in FireFox. Does anyone have any suggestions on how to do this?
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