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WebSocket with SSL
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The WebSocket connection starts its life with an HTTP or HTTPS handshake. When the page is accessed through HTTP, you can use WS or WSS (WebSocket secure: WS over TLS) . However, when your page is loaded through HTTPS, you can only use WSS - browsers don't allow to "downgrade" security.
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?
...ed in favor of the value from the form’s initial data.
With Django 1.8 and earlier, to disable entry on the widget and prevent malicious POST hacks you must scrub the input in addition to setting the readonly attribute on the form field:
class ItemForm(ModelForm):
def __init__(self, *args, ...
How do I resize an image using PIL and maintain its aspect ratio?
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Like it says, the example was from the pil documentation, and that example (still) doesn't use the antialias flag. Since it's probably what most people would want, though, I added it.
– gnud
Dec 8 '11 at 8:29
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process.env.NODE_ENV is undefined
...e default value should be 'development'. How is this value dynamically set and where is it set initially?
12 Answers
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Calling method using JavaScript prototype
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I did not understand what exactly you're trying to do, but normally implementing object-specific behaviour is done along these lines:
function MyClass(name) {
this.name = name;
}
MyClass.prototype.doStuff = function() {
// generic b...
To ternary or not to ternary? [closed]
...ve come across many programmers that are completely against ever using it, and some that use it too often.
54 Answers
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Does opacity:0 have exactly the same effect as visibility:hidden
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Also, with "opacity: 0" Flash objects are rendered, and sprite's constructor is triggered, but with "visibility: hidden" not.
– pepkin88
Dec 30 '10 at 22:40
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How to get number of entries in a Lua table?
...ind an answer. The Lua # operator only counts entries with integer keys, and so does table.getn :
8 Answers
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Is there a better way to iterate over two lists, getting one element from each list for each iterati
I have a list of Latitudes and one of Longitudes and need to iterate over the latitude and longitude pairs.
7 Answers
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Defining static const integer members in class definition
My understanding is that C++ allows static const members to be defined inside a class so long as it's an integer type.
7 An...