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Why can't I use the 'await' operator within the body of a lock statement?
...
I assume this is either difficult or impossible for the compiler team to implement for some reason.
No, it is not at all difficult or impossible to implement -- the fact that you implemented it yourself is a testament to that fact. Rather, it is an incre...
Create a completed Task
I'm implementing a method Task<Result> StartSomeTask() and happen to know the result already before the method is called. How do I create a Task<T> that has already completed?
...
What does the ^ operator do in Java?
... an operator. You can use double Math.pow(double, double) (casting the result to int if necessary).
You can also use the traditional bit-shifting trick to compute some powers of two. That is, (1L << k) is two to the k-th power for k=0..63.
See also
Wikipedia: Arithmetic shift
Merge ...
Interface or an Abstract Class: which one to use?
...t classes can only extend one abstract class, whereas they can implement multiple interfaces. So, if you're defining your behavior contracts in abstract classes, that means each child class may only conform to a single contract. Sometimes this a good thing, when you want to force your user-program...
Using Eloquent ORM in Laravel to perform search of database using LIKE
...inate/Database/Query/Builder.php
protected $operators = array(
'=', '<', '>', '<=', '>=', '<>', '!=',
'like', 'not like', 'between', 'ilike',
'&', '|', '^', '<<', '>>',
'rlike', 'regexp', 'not regexp',
);
disclaimer:
Joel Larson's answer is corre...
How to read data when some numbers contain commas as thousand separator?
... "," with "", and then convert the string to numeric using as.numeric:
y <- c("1,200","20,000","100","12,111")
as.numeric(gsub(",", "", y))
# [1] 1200 20000 100 12111
This was also answered previously on R-Help (and in Q2 here).
Alternatively, you can pre-process the file, for instance with ...
TypeScript and field initializers
...ed 07/12/2016:
Typescript 2.1 introduces Mapped Types and provides Partial<T>, which allows you to do this....
class Person {
public name: string = "default"
public address: string = "default"
public age: number = 0;
public constructor(init?:Partial<Person>) {
...
java.lang.IllegalStateException: Cannot (forward | sendRedirect | create session) after response has
...same servlet before the particular code line, but also in any servlet or filter which was been called before the particular servlet.
In case of sendError(), if your sole purpose is to set the response status, use setStatus() instead.
Another probable cause is that the servlet writes to the response...
Encode html entities in javascript
...look something like this:
var encodedStr = rawStr.replace(/[\u00A0-\u9999<>\&]/gim, function(i) {
return '&#'+i.charCodeAt(0)+';';
});
This code will replace all characters in the given range (unicode 00A0 - 9999, as well as ampersand, greater & less than) with their html ent...
Directive isolate scope with ng-repeat scope in AngularJS
...ope
Here's an example of the same code but with the directive removed:
<li ng-repeat="name in names"
ng-class="{ active: $index == selected }"
ng-click="selected = $index">
{{$index}}: {{name.first}} {{name.last}}
</li>
Here is a JSFiddle demonstrating that it won't work...