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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
...u'll also have to use the leading-colon style for symbols that you use outside of Hashes. I prefer to be consistent so I don't bother with the JavaScript style at all.
Some of the problems with the JavaScript-style have been fixed in Ruby 2.2. You can now use quotes if you have symbols that aren't ...
Including JavaScript class definition from another file in Node.js
...= User
exports.ROLE_ADMIN = 'admin'
exports.ROLE_USER = 'user'
export.isValidUser = function isValidUser() {
// ...
}
server.js
const {User, ROLE_ADMIN, ROLE_USER, isValidUser} = require('./user.js')
// Instantiate User:
let user = new User()
ES Modules
Since Node.js version 14 it's possible ...
How to get a list of properties with a given attribute?
... prop => Attribute.IsDefined(prop, typeof(MyAttribute)));
This avoids having to materialize any attribute instances (i.e. it is cheaper than GetCustomAttribute[s]().
share
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improve this an...
How do I compile a Visual Studio project from the command-line?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Closing multiple issues in Github with a commit message
...sage.
The closes clauses can be anywhere in the message and fixes is a valid synonym:
This fixes a memory leak in foo() that closes #4,
also fixes #5 which is a duplicate.
The following used to work, but nowadays only references issues #2 and #3.
Closes #1, #2, #3
...
How to add to an existing hash in Ruby
... => 'a', :b => 'Bee' }
Ruby on Rails confuses this somewhat by providing HashWithIndifferentAccess where it will convert freely between Symbol and String methods of addressing.
You can also index on nearly anything, including classes, numbers, or other Hashes.
hash = { Object => true, H...
URL Encode a string in jQuery for an AJAX request
...
Try encodeURIComponent.
Encodes a Uniform Resource Identifier (URI) component by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters comp...
Differences between numpy.random and random.random in Python
...l, random.random.seed() is thread-safe (or at least, I haven't found any evidence to the contrary).
The numpy.random library contains a few extra probability distributions commonly used in scientific research, as well as a couple of convenience functions for generating arrays of random data. The ra...
Setting Short Value Java
I am writing a little code in J2ME. I have a class with a method setTableId(Short tableId) . Now when I try to write setTableId(100) it gives compile time error. How can I set the short value without declaring another short variable?
...
contenteditable, set caret at the end of the text (cross-browser)
...CaretAtEnd( document.querySelector('p') );
p{ padding:.5em; border:1px solid black; }
<p contentEditable>foo bar </p>
Placing the caret at the start is almost identical: it just requires changing the Boolean passed into the calls to collapse(). Here's an example that creates fun...