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Is it possible to use getters/setters in interface definition?
... to define a get value on an interface, you can use readonly:
interface Foo {
readonly value: number;
}
let foo: Foo = { value: 10 };
foo.value = 20; //error
class Bar implements Foo {
get value() {
return 10;
}
}
but as far as I'm aware, and as others mentioned, there is no way cu...
Will using 'var' affect performance?
...used an exact type. For example, if you have this method:
IList<int> Foo()
{
return Enumerable.Range(0,10).ToList();
}
Consider these three lines of code to call the method:
List<int> bar1 = Foo();
IList<int> bar = Foo();
var bar3 = Foo();
All three compile and execute as exp...
How to create enum like type in TypeScript?
...lor);
console.log(Color[this.myColor]);
}
}
}
var foo = new myModule.MyClass();
This will log:
undefined
2
Blue
Because, at the time of writing this, the Typescript Playground will generate this code:
var myModule;
(function (myModule) {
(function (Color)...
How can I specify a local gem in my Gemfile?
...
I believe you can do this:
gem "foo", path: "/path/to/foo"
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What is a NullReferenceException, and how do I fix it?
...bers (such as methods) through a null reference. The simplest case:
string foo = null;
foo.ToUpper();
This will throw a NullReferenceException at the second line because you can't call the instance method ToUpper() on a string reference pointing to null.
Debugging
How do you find the source of a Nu...
In JavaScript, is returning out of a switch statement considered a better practice than using break?
...at within if/else statements it is best practice to do the following:
var foo = "bar";
if(foo == "bar") {
return 0;
}
else {
return 100;
}
Based on this, the argument could be made that option one is better practice.
In short, there's no clear answer, so as long as your code adheres to ...
Understanding the difference between __getattr__ and __getattribute__
... @Md.AbuNafeeIbnaZahid getattr is a built-in function. getattr(foo, 'bar') is equivalent to foo.bar.
– wizzwizz4
Jul 3 '18 at 18:11
...
Regular expression for exact match of a string
...ause many people serious problems. E.g., using your approach \bhttp://www.foo.com\b will match http://www.bar.com/?http://www.foo.com, which is most definitely not an exact match, as requested in the OP. This will cause serious problems for people working with URLs or passwords (which, again, is wh...
Is there a combination of “LIKE” and “IN” in SQL?
...is still slightly different:
Oracle:
WHERE CONTAINS(t.something, 'bla OR foo OR batz', 1) > 0
SQL Server:
WHERE CONTAINS(t.something, '"bla*" OR "foo*" OR "batz*"')
The column you are querying must be full-text indexed.
Reference:
Building Full-Text Search Applications with Oracle Text ...
How to check if a map contains a key in Go?
...
One line answer:
if val, ok := dict["foo"]; ok {
//do something here
}
Explanation:
if statements in Go can include both a condition and an initialization statement. The example above uses both:
initializes two variables - val will receive either the va...