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filter items in a python dictionary where keys contain a specific string
...2.7
results = map(some_function, [(k,v) for k,v in a_dict.iteritems() if 'foo' in k])
Now the result will be in a list with some_function applied to each key/value pair of the dictionary, that has foo in its key.
If you just want to deal with the values and ignore the keys, just change the list ...
Change values while iterating
...c main() {
n := Node{[]*Attribute{
&Attribute{"foo", ""},
&Attribute{"href", ""},
&Attribute{"bar", ""},
}}
for _, attr := range n.Attr {
if attr.Key == "href" {
attr.Val = "s...
Looking for jQuery find(..) method that includes the current node
...this.pushStack(r);
};
After the call of the end function it returns the #foo element.
$('#foo')
.findBack('.red')
.css('color', 'red')
.end()
.removeAttr('id');
Without defining extra plugins, you are stuck with this.
$('#foo')
.find('.red')
.addBack('.red')
...
OS X Bash, 'watch' command
...expand parameters before running the script, so in a directory with files "foo" and "bar", you'd run cat foo bar every 2 seconds. What behaviour were you expecting?
– ghoti
Aug 19 '13 at 14:33
...
Breakpoint on property change
... in Firefox, you can watch for changes natively:
>>> var obj = { foo: 42 }
>>> obj.watch('foo', function() { console.log('changed') })
>>> obj.foo = 69
changed
69
However, this will be soon (late 2017) removed.
...
How can you zip or unzip from the script using ONLY Windows' built-in capabilities?
....IO.Compression.FileSystem'; [IO.Compression.ZipFile]::ExtractToDirectory('foo.zip', 'bar'); }"
As Ivan Shilo said, this won't work with PowerShell 2, it requires PowerShell 3 or greater and .NET Framework 4.
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...
Escape a dollar sign in string interpolation
...
Just double it
scala> val name = "foo"
name: String = foo
scala> s"my.package.$name$$"
res0: String = my.package.foo$
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|
improve this answer
...
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.
...