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Prevent automatic browser scroll on refresh
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Basically, if an anchor is used we bind to the windows scroll event. The idea being that the first scroll event has to belong to the automatic repositioning done by the browser. When this occurs we do our own repositioning and then remove the bound event. This prevents subsequent page scrolls from...
Comma separator for numbers in R?
...IT: As Michael Chirico says in the comment:
Be aware that these have the side effect of padding the printed strings with blank space, for example:
> prettyNum(c(123,1234),big.mark=",")
[1] " 123" "1,234"
Add trim=TRUE to format or preserve.width="none" to prettyNum to prevent this:
> pr...
Django - iterate number in for loop of a template
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Django provides it. You can use either:
{{ forloop.counter }} index starts at 1.
{{ forloop.counter0 }} index starts at 0.
In template, you can do:
{% for item in item_list %}
{{ forloop.counter }} # starting index 1
{{ for...
C# Sortable collection which allows duplicate keys
...t; : List<Tuple<T1, T2>> where T1 : IComparable
{
public void Add(T1 item, T2 item2)
{
Add(new Tuple<T1, T2>(item, item2));
}
public new void Sort()
{
Comparison<Tuple<T1, T2>> c = (a, b) => a.Item1.CompareTo(b.Item1);
bas...
Git: Ignore tracked files
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Is there a difference between /\s/g and /\s+/g?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Difference between `npm start` & `node app.js`, when starting app?
...e man page, npm start:
runs a package's "start" script, if one was provided.
If no version is specified, then it starts the "active" version.
Admittedly, that description is completely unhelpful, and that's all it says. At least it's more documented than socket.io.
Anyhow, what really happe...
What does rake db:test:prepare actually do?
I am following the rails tutorial videos and I can't figure out what the db:test:prepare command actually does. Can someone provide an explanation?
...
What does apply_filters(…) actually do in WordPress?
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Here's what I'm gleaning, upon considering the most popular answer and additional resources:
$tag seems to be a synonym for the name of the hook. (That's not particularly intuitive to me.)
the_content is an example of a hook, of the "filter" type.
the_conte...
Rails new vs create
...reates an object (or multiple objects) and saves it to the database, if validations pass. The resulting object is returned whether the object was saved successfully to the database or not.
new(attributes = nil) {|self if block_given?| ...}
New objects can be instantiated as either empty (pass...