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When and why would you seal a class?
...he inheritance to the places where it really made full sense, because it becomes expensive performance-wise if left untreated. The sealed keyword tells the CLR that there is no class further down to look for methods, and that speeds things up.
In most performance-enhancing tools on the market nowa...
How to convert URL parameters to a JavaScript object?
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Edit
This edit improves and explains the answer based on the comments.
var search = location.search.substring(1);
JSON.parse('{"' + decodeURI(search).replace(/"/g, '\\"').replace(/&/g, '","').replace(/=/g,'":"') + '"}')
Example
Parse abc=foo&def=%5Basf%5D&xyz=5 in five ...
Get time difference between two dates in seconds
... 1000;
Or even simpler (endDate - startDate) / 1000 as pointed out in the comments unless you're using typescript.
The explanation
You need to call the getTime() method for the Date objects, and then simply subtract them and divide by 1000 (since it's originally in milliseconds). As an extra, when...
What is the proper #include for the function 'sleep()'?
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Using a constant NSString as the key for NSUserDefaults
...s a pointer to a constant NSString object.
It is a subtle difference. The compiler warning happens because setObject:forKey: is declared as follows:
- (void)setObject:(id)value forKey:(NSString *)defaultName;
It is expecting the defaultName argument to be of type NSString *. When you instead pas...
What’s the difference between “Array()” and “[]” while declaring a JavaScript array?
... But as noted in your answer, it's only different if you are completely insane and overwrite the Array function..?
– nickf
Aug 13 '09 at 22:59
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.gitignore exclude files in directory but not certain directories
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Trigger a keypress/keydown/keyup event in JS/jQuery?
...ent Keypress: Which key was pressed?, specifically regarding cross-browser compatability with the .which property.
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What's the best way to model recurring events in a calendar application?
...ication that needs to support recurring events, but all the solutions I've come up with to handle these events seem like a hack. I can limit how far ahead one can look, and then generate all the events at once. Or I can store the events as repeating and dynamically display them when one looks ahead ...
How to remove “onclick” with JQuery?
...rop('onclick',null).off('click');
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<a id="a$id" onclick="alert('get rid of this')" href="javascript:void(0)" class="black">Qualify</a>
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