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Breakpoint on property change
... in Firefox, you can watch for changes natively:
>>> var obj = { foo: 42 }
>>> obj.watch('foo', function() { console.log('changed') })
>>> obj.foo = 69
changed
69
However, this will be soon (late 2017) removed.
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How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
....IO.Compression.FileSystem'; [IO.Compression.ZipFile]::ExtractToDirectory('foo.zip', 'bar'); }"
As Ivan Shilo said, this won't work with PowerShell 2, it requires PowerShell 3 or greater and .NET Framework 4.
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Escape a dollar sign in string interpolation
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Just double it
scala> val name = "foo"
name: String = foo
scala> s"my.package.$name$$"
res0: String = my.package.foo$
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When should I use a trailing slash in my URL?
...hose without a trailing slash to
denote a file:
http://example.com/foo/ (with trailing slash, conventionally a directory)
http://example.com/foo (without trailing slash, conventionally a file)
Source: Google WebMaster Central Blog - To slash or not to slash
Finally:
A slash at the ...
How to 'bulk update' with Django?
...hould be able to use:
ModelClass.objects.filter(name='bar').update(name="foo")
You can also use F objects to do things like incrementing rows:
from django.db.models import F
Entry.objects.all().update(n_pingbacks=F('n_pingbacks') + 1)
See the documentation.
However, note that:
This won't ...
Python naming conventions for modules
...rcase. This leads to imports like the following:
from nib import Nib
from foo import Foo
from spam.eggs import Eggs, FriedEggs
It's a bit like emulating the Java way. One class per file. But with the added flexibility, that you can allways add another class to a single file if it makes sense.
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Is it faster to count down than it is to count up?
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In C to psudo-assembly:
for (i = 0; i < 10; i++) {
foo(i);
}
turns into
clear i
top_of_loop:
call foo
increment i
compare 10, i
jump_less top_of_loop
while:
for (i = 10; i >= 0; i--) {
foo(i);
}
turns into
load i, 10
top_of_loop:
ca...
Creating hard and soft links using PowerShell
... Worked also on a Windows10 system.
– FooF
Feb 21 '19 at 4:09
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What is the difference between Type and Class?
...think of a 'type' as an umbrella term for 'classes' and 'primitives'.
int foo; // Type is int, class is nonexistent.
MyClass foo; // Type is MyClass, class is MyClass
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Authoritative position of duplicate HTTP GET query keys
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@IanClark It's intuitive to PHP coders - in plain PHP, $foo[] = 1 appends to an array. Django (Python) also does the same thing.
– Izkata
Dec 10 '13 at 17:52
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