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How does Django's Meta class work?
...ow objects work in general.
https://docs.python.org/3/reference/datamodel.html
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Difference between MVC 5 Project and Web Api Project
...r creating web sites. In this case Controllers usually return a View (i.e. HTML response) to browser requests. Web APIs on the other hand are usually made to be consumed by other applications. If you want to allow other applications to access your data / functionality, you can create a Web API to fa...
Calculating sum of repeated elements in AngularJS ng-repeat
...e ng-init to tally your total. This way, you do not have to iterate in the HTML and iterate in the controller. In this scenario, I think this is a cleaner/simpler solution. (If the tallying logic was more complex, I definitely would recommend moving the logic to the controller or service as appropr...
Difference between '..' (double-dot) and '…' (triple-dot) in range generation?
...d using ... exclude the end value.
-- http://ruby-doc.org/core-2.1.3/Range.html
In other words:
2.1.3 :001 > ('a'...'d').to_a
=> ["a", "b", "c"]
2.1.3 :002 > ('a'..'d').to_a
=> ["a", "b", "c", "d"]
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How can I check if a key is pressed during the click event with jQuery?
...d down'). Here's a nice article about key events in JS unixpapa.com/js/key.html
– F Lekschas
Nov 2 '15 at 23:39
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App Inventor 2 DynamicComponents 拓展：动态创建AI2组件对象 · App Inventor 2 中文网
...前组件的所有已用 ID 作为 App Inventor [列表](../blocks/lists.html)返回。
生成一个随机的唯一 UUID。如果你不需要组件 ID，请在“创建”块中使用此块。
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How to convert a ruby hash object to JSON?
... # => "1". Docs here: ruby-doc.org/stdlib-2.6.3/libdoc/json/rdoc/JSON.html
– bkunzi01
Jul 13 at 20:22
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The definitive guide to form-based website authentication [closed]
... How To Log In
We'll assume you already know how to build a login+password HTML form which POSTs the values to a script on the server side for authentication. The sections below will deal with patterns for sound practical auth, and how to avoid the most common security pitfalls.
To HTTPS or not to H...
Check if array is empty or null
...h(value);
}
});
if (album_text.length === 0) {
$('#error_message').html("Error");
}
else {
//send data
}
Some notes on what you were doing and what I changed.
$(this) is always a valid jQuery object so there's no reason to ever check if ($(this)). It may not have any DOM objects in...
jQuery vs document.querySelectorAll
...y: $.inArray vs Array.indexOf: Jquery 24% slower
DOM: $.empty vs Node.innerHtml: Jquery 97% slower
DOM: $.on vs Node.addEventListener: Jquery 90% slower
DOM: $.find vs Node.queryselectorall: Jquery 90% slower
Array: $.grep vs Array.filter: Native 70% slower
DOM: $.show/hide vs display none: Jquery 8...