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converting a .net Func to a .net Expression
Going from a lambda to an Expression is easy using a method call...
9 Answers
9
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How to insert a character in a string at a certain position?
...e. I want to display it as a String with a decimal point (.) at 2 digits from the end of int . I wanted to use a float but was suggested to use String for a better display output (instead of 1234.5 will be 1234.50 ). Therefore, I need a function that will take an int as parameter and ret...
How do I send a file as an email attachment using Linux command line?
...runs every night on my Linux server that uses mysqldump to back up each of my MySQL databases to .sql files and packages them together as a compressed .tar file. The next step I want to accomplish is to send that tar file through email to a remote email server for safekeeping. I've been able to ...
Find a file in python
I have a file that may be in a different place on each user's machine. Is there a way to implement a search for the file? A way that I can pass the file's name and the directory tree to search in?
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ansible: lineinfile for several lines?
...n use a loop to do it. Here's an example using a with_items loop:
- name: Set some kernel parameters
lineinfile:
dest: /etc/sysctl.conf
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
with_items:
- { regexp: '^kernel.shmall', line: 'kernel.shmall = 2097152' }
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How to create border in UIButton?
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You can set the border properties on the CALayer by accessing the layer property of the button.
First, add Quartz
#import <QuartzCore/QuartzCore.h>
Set properties:
myButton.layer.borderWidth = 2.0f;
myButton.layer.borderCo...
Listing only directories in UNIX
I want to list only the directories in specified path ( ls doesn't have such option).
Also, can this be done with a single line command?
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Best approach for designing F# libraries for use from both F# and C#
...ce and ignore it internally. YMMV.
It makes a lot of sense to use list/map/set internally. They can all be exposed through the public interface as IEnumerable<_>. Also, seq, dict, and Seq.readonly are frequently useful.
See #6.
Which strategy you take depends on the type and size of your lib...
Convert Django Model object to dict with all of the fields intact
... is strictly worse than the standard model_to_dict invocation.
4. query_set.values()
SomeModel.objects.filter(id=instance.id).values()[0]
which returns
{'auto_now_add': datetime.datetime(2018, 12, 20, 21, 34, 29, 494827, tzinfo=<UTC>),
'foreign_key_id': 2,
'id': 1,
'normal_value': 1,...
How do I format a date in Jinja2?
Using Jinja2, how do I format a date field? I know in Python I can simply do this:
9 Answers
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