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What's the right way to pass form element state to sibling/parent elements?
...ContextContainer = React.createContext(null);
const initialAppState = {
selected: "Nothing"
};
function App() {
// The app has a state variable and update handler
const [appState, updateAppState] = useState(initialAppState);
return (
<div>
<h1>Passing state between c...
EditText underline below text property
...above, you can get images from a lot of components in the Holo theme. Just select "EditText" and the color you want. You can see a preview at the bottom of the page.
Download the .zip file, and copy paste the resources in your project (images and the XML).
if your XML is named: apptheme_edit_text_...
How can I extract embedded fonts from a PDF as valid font files?
...or FontForge:
Use the "Open Font" dialogbox used when opening files.
Then select "Extract from PDF" in the filter section of dialog.
Select the PDF file with the font to be extracted.
A "Pick a font" dialogbox opens -- select here which font to open.
Check the FontForge manual. You may need to fol...
How to set java_home on Windows 7?
... installation path:
Right-click the My Computer icon on your desktop and select Properties.
Click the Advanced tab, then click the Environment Variables button.
Under System Variables, click New.
Enter the variable name as JAVA_HOME.
Enter the variable value as the installation path for the Java ...
Are there console commands to look at whats in the queue and to clear the queue in Sidekiq?
...ou could do all of this even more easily via redis-cli :
$ redis-cli
> select 0 # (or whichever namespace Sidekiq is using)
> keys * # (just to get an idea of what you're working with)
> smembers queues
> lrange queues:app_queue 0 -1
> lrem queues:app_queue -1 "payload"
...
Scheduling R Script
...g go to
**TOOLS -> ADDINS ->BROWSE ADDINS ->taskscheduleR -> Select it and execute it.**
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How do I delete rows in a data frame?
... :
mydata[-seq(2, nrow(mydata), by = 2) , ]
Or if you want to subset by selecting odd numbers:
mydata[which(1:nrow(mydata) %% 2 == 1) , ]
Or if you want to subset by selecting odd numbers, version 2:
mydata[which(1:nrow(mydata) %% 2 != 0) , ]
Or if you want to subset by filtering even numbe...
Submitting a form by pressing enter without a submit button
...
A keypress is also triggered for a selection from autocomplete, i.e. if the user is inputting an email address and he/she selects a previously given one from the browser's autocomplete by hitting enter, then your form will submit. Not what your users will expe...
Difference between map and collect in Ruby?
..., in C# (3.0)'s LINQ library, it is provided as an extension method called Select. Map is also a frequently used operation in high level languages such as Perl, Python and Ruby; the operation is called map in all three of these languages. A collect alias for map is also provided in Ruby (from Smallt...
Android: Test Push Notification online (Google Cloud Messaging) [closed]
...supports both Android and iOS. Easy to use simple website pushtry.com 1. Select you .p12 file 2. Enter device token3 3. Select environment Sandbox or production 4. Enter message 5. Send
– Arvind
Aug 22 '16 at 6:11
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