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Useless use of cat?
... award until today when some rookie tried to pin the UUOC on me for one of my answers. It was a cat file.txt | grep foo | cut ... | cut .... I gave him a piece of my mind, and only after doing so visited the link he gave me referring to the origins of the award and the practice of doing so. Further ...
CSS Selector for
...nts, and I'm setting the background color for text boxes, but I don't want my checkboxes to get that color.
4 Answers
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C# - Keyword usage virtual+override vs. new
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Oops If forgot to add these few line to my prev. comment: do you mean virtual/overriding and non-vitual/new are used just for polymorphysm concept and when you simply declare a variable (not using casting) they don't mean? Thanks again.
– odi...
How do you convert a jQuery object into a string?
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So much better as it retains my attributes as well. Thanks!
– Rohit
Apr 9 '14 at 15:07
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Determine the process pid listening on a certain port
...d then I would like to kill this process. I need that in order to complete my bash script.
8 Answers
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When to use RSpec let()?
...before blocks to set instance variables. I then use those variables across my examples. I recently came upon let() . According to RSpec docs, it is used to
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Should I write script in the body or the head of the html? [duplicate]
...ody closure).
do NOT place script in the markup such as <input onclick="myfunction()"/> - better to put it in event handlers in your script body instead.
If you cannot decide, put it in the head until you have a reason not to such as page blocking issues.
Footnote: "When you need it and not...
How do I execute a string containing Python code in Python?
...ts, use exec(string) (Python 2/3) or exec string (Python 2):
>>> mycode = 'print "hello world"'
>>> exec(mycode)
Hello world
When you need the value of an expression, use eval(string):
>>> x = eval("2+2")
>>> x
4
However, the first step should be to ask your...
How to get the IP address of the docker host from inside a docker container
...velopment purposes only.
For example, I have environment variables set on my host:
MONGO_SERVER=host.docker.internal
In my docker-compose.yml file, I have this:
version: '3'
services:
api:
build: ./api
volumes:
- ./api:/usr/src/app:ro
ports:
- "8000"
environment:
...
Using jQuery to center a DIV on the screen
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I put a jquery plugin here
VERY SHORT VERSION
$('#myDiv').css({top:'50%',left:'50%',margin:'-'+($('#myDiv').height() / 2)+'px 0 0 -'+($('#myDiv').width() / 2)+'px'});
SHORT VERSION
(function($){
$.fn.extend({
center: function () {
return this.each(fu...