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How to jump to top of browser page
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You can set the scrollTop, like this:
$('html,body').scrollTop(0);
Or if you want a little animation instead of a snap to the top:
$('html, body').animate({ scrollTop: 0 }, 'fast');
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How to empty a redis database?
... (and add some fun with it) during the last fews days and I'd like to know if there is a way to empty the db (remove the sets, the existing key....) easily.
During my tests, I created several sets with a lot of members, even created sets that I do not remember the name (how can I list those guys t...
Why return NotImplemented instead of raising NotImplementedError
...hould ask someone else to satisfy the operation. In the expression a == b, if a.__eq__(b) returns NotImplemented, then Python tries b.__eq__(a). If b knows enough to return True or False, then the expression can succeed. If it doesn't, then the runtime will fall back to the built-in behavior (which ...
Is the primary key automatically indexed in MySQL?
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If primary key is always indexed why do people when talking about database architecture/performance always advise SQL newcomers to "make sure their database is properly indexed"?
– tim peterson
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Regular expression for matching HH:MM time format
..." part in the string is valid. I resolved the issue by using the following if statement let res = value.match(regex); if (res && res[0] === value) doSomething();
– Taha Rehman Siddiqui
Oct 7 '19 at 17:55
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Ordering by the order of values in a SQL IN() clause
I am wondering if there is away (possibly a better way) to order by the order of the values in an IN() clause.
13 Answers
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How to sort a list of objects based on an attribute of the objects?
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No problem. btw, if muhuk is right and it's a list of Django objects, you should consider his solution. However, for the general case of sorting objects, my solution is probably best practice.
– Triptych
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
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Be careful with this approach -- if you had other attributes about that column (for example a :limit constraint), you need to repeat those attributes when using change_column, or they will be lost. For this reason, I prefer to use change_column_null
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What's the difference between RouteLink and ActionLink in ASP.NET MVC?
...rst matching route by action name.
RouteLink will generate a URL to a specific route determined either by name or route values.
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Using .sort with PyMongo
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If it is only one field, it can be .sort("_id", 1)
– Haris Np
Mar 15 '18 at 11:51
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