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How to get the function name from within that function?
...
This might work for you:
function foo() { bar(); }
function bar() { console.log(bar.caller.name); }
running foo() will output "foo" or undefined if you call from an anonymous function.
It works with constructors too, in which case it would output the name...
Writing Unicode text to a text file?
...onvert it to a unicode-encoded string object before writing it to a file:
foo = u'Δ, Й, ק, م, ๗, あ, 叶, 葉, and 말.'
f = open('test', 'w')
f.write(foo.encode('utf8'))
f.close()
When you read that file again, you'll get a unicode-encoded string that you can decode to a unicode objec...
What can you do in MSIL that you cannot do in C# or VB.NET? [closed]
All code written in .NET languages compiles to MSIL, but are there specific tasks / operations that you can do only using MSIL directly?
...
Difference between this and self in self-type annotations?
...class A.
The first two variants
trait A { self: B => ... }
trait A { foo: B => ... }
introduce self (respectively, foo) as an alias for this in trait A. This is useful for accessing the this reference from an inner class. I.e. you could then use self instead of A.this when accessing the t...
What happens if I define a 0-size array in C/C++?
... int content[];
};
The idea is that you would then allocate it so:
void foo(size_t x) {
Array* array = malloc(sizeof(size_t) + x * sizeof(int));
array->size = x;
for (size_t i = 0; i != x; ++i) {
array->content[i] = 0;
}
}
You might also use it statically (gcc extension):
Ar...
Get nested JSON object with GSON using retrofit
..."status":"OK",
"reason":"some reason",
"content" :
{
"foo": 123,
"bar": "some value"
}
}
You'd then have a Content POJO:
class Content
{
public int foo;
public String bar;
}
Then you write a deserializer:
class MyDeserializer implements JsonDeserializer...
How to disable text selection highlighting
...be unselectable. You can set this using an attribute in HTML:
<div id="foo" unselectable="on" class="unselectable">...</div>
Sadly this property isn't inherited, meaning you have to put an attribute in the start tag of every element inside the <div>. If this is a problem, you co...
Amazon S3 Change file download name
...to set the downloading filename:
Content-Disposition: attachment; filename=foo.bar
For the sake of fairness I'd like to mention that it was not me to provide the right answer on Amazon forum and all credits should go to Colin Rhodes ;-)
...
PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
How do I modify the owner of all tables in a PostgreSQL database?
20 Answers
20
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How to call a parent method from child class in javascript?
...u are using ES6 classes syntax. As a very simple example, checkout:
class Foo {
static classMethod() {
return 'hello';
}
}
class Bar extends Foo {
static classMethod() {
return super.classMethod() + ', too';
}
}
Bar.classMethod(); // 'hello, too'
Also, you can use...