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How do I loop through or enumerate a JavaScript object?
...have to make sure that the key you get is an actual property of an object, and doesn't come from the prototype.
Here is the snippet:
var p = {
"p1": "value1",
"p2": "value2",
"p3": "value3"
};
for (var key in p) {
if (p.hasOwnProperty(key)) {
console.log(key + "...
Rails 4: how to use $(document).ready() with turbo-links
...sly scattered across different views. I organized them into separate files and compile them with the assets pipeline. However, I just learned that jQuery's "ready" event doesn't fire on subsequent clicks when turbo-linking is turned on. The first time you load a page it works. But when you click a l...
ExecutorService that interrupts tasks after a timeout
...Service for this. First you would submit it only once to begin immediately and retain the future that is created. After that you can submit a new task that would cancel the retained future after some period of time.
ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
final F...
Concatenate two string literals
... He writes that "the new idea is that we can use + to concatenate a string and a string literal - or, for that matter, two strings (but not two string literals).
...
How do I format a long integer as a string without separator in Java?
...sking on here will probably be more straight forward than trying to understand the documentation for MessageFormat :
6 Ans...
How do I restart nginx only after the configuration test was successful on Ubuntu?
When I restart the nginx service on a command line on an Ubuntu server, the service crashes when a nginx configuration file has errors. On a multi-site server this puts down all the sites, even the ones without configuration errors.
...
How can I get Git to follow symlinks?
...now out-dated as per comment since Git 1.6.1. Git used to behave this way, and no longer does.
Git by default attempts to store symlinks instead of following them (for compactness, and it's generally what people want).
However, I accidentally managed to get it to add files beyond the symlink whe...
How do I return multiple values from a function? [closed]
...ing library got the NamedTuple class to make named tuples easier to create and more powerful. Inheriting from typing.NamedTuple lets you use docstrings, default values, and type annotations.
Example (From the docs):
class Employee(NamedTuple): # inherit from typing.NamedTuple
name: str
id...
Java array reflection: isArray vs. instanceof
...u might, for example, be implementing some sort of serialization mechanism and be able to pass each component of the array to the same serialization method, regardless of type.
There are two special cases: null references and references to primitive arrays.
A null reference will cause instanceof t...
Are there pronounceable names for common Haskell operators? [closed]
I'm reading Learn You a Haskell for Great Good , and I never know how to pronounce the Haskell operators. Do they have "real" names? ?
...