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Ruby function to remove all white spaces?
..." a b c ".squish
will result to:
"a b c"
Check this reference from api.rubyonrails.org.
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Identify duplicates in a List
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I took John Strickler's solution and remade it to use the streams API introduced in JDK8:
private <T> Set<T> findDuplicates(Collection<T> collection) {
Set<T> uniques = new HashSet<>();
return collection.stream()
.filter(e -> !uniques.add(e)...
Detecting when user has dismissed the soft keyboard
...d. I have to wonder why the android folks don't just provide some nice OSK APIs for this sort of thing.
– tbm
Sep 15 '14 at 23:43
2
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If I have ACCESS_FINE_LOCATION already, can I omit ACCESS_COARSE_LOCATION?
...o request one permission. developers.google.com/maps/documentation/android-api/location
– Klox
Feb 4 '17 at 18:05
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Passing arguments to angularjs filters
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Actually you can pass a parameter ( http://docs.angularjs.org/api/ng.filter:filter ) and don't need a custom function just for this. If you rewrite your HTML as below it'll work:
<div ng:app>
<div ng-controller="HelloCntl">
<ul>
<li ng-repeat="friend in frien...
Mongoose populate after save
...o use the Model's populate function to do this: http://mongoosejs.com/docs/api.html#model_Model.populate In the save handler for book, instead of:
book._creator = user;
you'd do something like:
Book.populate(book, {path:"_creator"}, function(err, book) { ... });
Probably too late an answer to...
Differences between C++ string == and compare()?
...rmance-wise in your case to use the equality operator.
Longer answer: The API provides a method to check for string equality and a method to check string ordering. You want string equality, so use the equality operator (so that your expectations and those of the library implementors align.) If perf...
How to execute shell command in Javascript
...se frame your code :)
You could use the child_process module from node's API. I pasted the example code below.
var exec = require('child_process').exec, child;
child = exec('cat *.js bad_file | wc -l',
function (error, stdout, stderr) {
console.log('stdout: ' + stdout);
cons...
When is the @JsonProperty property used and what is it used for?
...able is directly used to serialize data. If you are about to remove system api from system implementation, in some cases, you have to rename variable in serialization/deserialization. @JsonProperty is a meta data to tell serializer how to serial object. It is used to:
variable name
access (READ, W...
How do I set up HttpContent for my HttpClient PostAsync second parameter?
...t! This has had me going for 4 days now, trying to get a simple REST to an API.
– Jimmyt1988
Sep 24 '13 at 9:28
The St...