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MongoDB not equal to
...b.inventory.find( { price: { $not: { $gt: 1.99 } } } )
That would select all documents where:
The price field value is less than or equal to 1.99 or the price
Field does not exist
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AngularJS - Trigger when radio button is selected
...d many ng-xxxx kind of options but couldn't find the one..
I just want to call some function in the controller when radio button is selected.
...
How to get Scala List from Java List?
...now built into the language using:
import scala.collection.JavaConversions._
...
lst.toList.foreach{ node => .... }
works. asScala did not work
In 2.12.x use import scala.collection.JavaConverters._
In 2.13.x use import scala.jdk.CollectionConverters._
...
Composite Key with EF 4.1 Code First
...
Anyway to add unique constraints / indexes that are not really keys?
– Shimmy Weitzhandler
Nov 28 '12 at 0:41
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...
C++ convert hex string to signed integer
...>> x;
// output it as a signed type
std::cout << static_cast<int>(x) << std::endl;
}
In the new C++11 standard, there are a few new utility functions which you can make use of! specifically, there is a family of "string to number" functions (http://en.cppreference.c...
How to access component methods from “outside” in ReactJS?
...
class Parent extends React.Class {
constructor(props) {
this._child = React.createRef();
}
componentDidMount() {
console.log(this._child.current.someMethod()); // Prints 'bar'
}
render() {
return (
<div>
<Child ref=...
How to position one element relative to another with jQuery?
...e placeholder
$(menu).css( {
position: 'absolute',
zIndex: 5000,
left: left,
top: top
} );
$(menu).hide().fadeIn();
};
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How to make maven build platform independent?
...ic needs:
<!-- https://maven.apache.org/plugins/maven-resources-plugin/index.html -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.1.0</version>
<configuration>
...
What's the scope of a variable initialized in an if statement?
...ked only at runtime -- that is, when you get to the print x statement. If __name__ didn't equal "__main__" then you would get an exception: NameError: name 'x' is not defined.
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How to sort in-place using the merge sort algorithm?
.... It's a very good trade-off. Yes, it's possible to associate the original index with the rest of the key so that you've never got two elements the same, giving a stable sort; that comes at a necessary cost of some extra space (linear in the number of elements) because you can't maintain the relativ...