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How can I add a table of contents to a Jupyter / JupyterLab notebook?
...
For all headings in your markdowns, notebook automatically adds anchors. You can click on the pilcrow (¶) on the right of the headings that you see when you hover over them, to reveal the anchor in your browser address bar. You can use this anchor instead of adding anchors man...
Equivalent of “continue” in Ruby
...
Yes, it's called next.
for i in 0..5
if i < 2
next
end
puts "Value of local variable is #{i}"
end
This outputs the following:
Value of local variable is 2
Value of local variable is 3
Value of local variable is 4
V...
What's the difference between lists enclosed by square brackets and parentheses in Python?
...1,2)
>>> x
(1, 2)
>>> x.append(3)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'tuple' object has no attribute 'append'
The other main difference is that a tuple is hashable, meaning that you can use it as a key to a diction...
How to get UITableView from UITableViewCell?
...ive category on UIView for this. You don't need to check the version; just call superview until you find a table view cell or the top of the view stack. This is what I used in iOS 6, and it worked without modification in iOS 7. And should work sitll in iOS 8.
– Steven Fisher
...
Tags for Emacs: Relationship between etags, ebrowse, cscope, GNU Global and exuberant ctags
... allows you to navigate to symbol declaration/definitions (what some would call a one-way lookup). ctags is a general purpose tool useful for many languages.
On the other hand (as mentioned on the project's page) cscope allows you to:
Go to the declaration of a symbol
Show a selectable list of al...
How to describe “object” arguments in jsdoc?
...*
* @typedef {Object} Person
* @property {string} name how the person is called
* @property {number} age how many years the person lived
*/
You can then use this in a @param tag:
/**
* @param {Person} p - Description of p
*/
Or in a @returns:
/**
* @returns {Person} Description
*/
Fo...
stringstream, string, and char* conversion confusion
...ender cstr invalid. It is therefor safer to not to store the result of the call to str() at all and use cstr only until the end of the full expression:
use_c_str( stringstream.str().c_str() );
Of course, the latter might not be easy and copying might be too expensive. What you can do instead is t...
Recommended way to stop a Gradle build
...you don't have any desire to be able to catch the exception later on is to call the ant fail task. It's slightly easier to read in my opinion and you can give a nice message to the user without use of --stacktrace.
task (tarball, dependsOn: warAdmin) << {
ant.fail('The sky is falling!!')...
What are type lambdas in Scala and what are their benefits?
... specify one of the types; the other of course is supplied at the time you call point or bind.
The type lambda trick exploits the fact that an empty block in a type position creates an anonymous structural type. We then use the # syntax to get a type member.
In some cases, you may need more sophis...
Python - When to use file vs open
... is going away.
file is the actual type (using e.g. file('myfile.txt') is calling its constructor). open is a factory function that will return a file object.
In python 3.0 file is going to move from being a built-in to being implemented by multiple classes in the io library (somewhat similar to J...