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Get element inside element by class and ID - JavaScript
...er than worrying about browser compatibility yourself (let someone else do all the work). If you want just a library to do that, then Sizzle will work great. In Sizzle, this would be be done like this:
Sizzle("#foo .bar")[0].innerHTML = "Goodbye world!";
jQuery has the Sizzle library built-in...
Test if a variable is a list or tuple
... excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, passes a string. My preference there would be to explicitly check for str or unicode like so:
import types
isinstance(var, types.String...
In C#, should I use string.Empty or String.Empty or “” to intitialize a string?
...person - so I suggest you find out what most people on your team like, and all go with that for consistency. Personally I find "" easier to read.
The argument that "" and " " are easily mistaken for each other doesn't really wash with me. Unless you're using a proportional font (and I haven't worke...
How to convert a string to utf-8 in Python
..."utf-8")
^ Converting to unicode and specifying the encoding.
In Python 3
All strings are unicode. The unicode function does not exist anymore. See answer from @Noumenon
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Specify sudo password for Ansible
...
For example, you might have a playbook something like this:
- hosts: all
vars_files:
- secret
tasks:
- name: Do something as sudo
service: name=nginx state=restarted
sudo: yes
Here we are including a file called secret which will contain our sudo password.
We will...
What does $$ mean in the shell?
... This does produce a number that varies from time to time... but if you call it repeatedly, it returns the same number. (The solution is to just use the time.)
...
Print “hello world” every X seconds
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@TimBender Just wondering whether OP really got his task done with this ;) Anyways, now I would prefer to use ExecutorService for these tasks. That is really a big improvement over traditional Thread API. Just didn't used it at the time of answering.
...
What are “named tuples” in Python?
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Named tuples are basically easy-to-create, lightweight object types. Named tuple instances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types...
What is SuppressWarnings (“unchecked”) in Java?
...to, and you need to effectively tell the compiler that what you're doing really will be legal at execution time.
I usually find this a pain when I'm mocking a generic interface, but there are other examples too. It's usually worth trying to work out a way of avoiding the warning rather than suppres...
Simplest/Cleanest way to implement singleton in JavaScript?
...
return { // public interface
publicMethod1: function () {
// all private members are accessible here
},
publicMethod2: function () {
}
};
})();
This has been called the module pattern, it basically allows you to encapsulate private members on an object, by taking advant...