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Get number of digits with JavaScript
...known behaviour of floating point math, so cast-to-string approach will be more easy and fool proof. As mentioned by @streetlogics fast casting can be done with simple number to string concatenation, leading the replace solution to be transformed to:
var length = (number + '').replace('.', '').leng...
Asynchronously wait for Task to complete with timeout
...Crafting a Task.TimeoutAfter Method" (from MS Parallel Library team) with more info on this sort of thing.
Addition: at the request of a comment on my answer, here is an expanded solution that includes cancellation handling. Note that passing cancellation to the task and the timer means that there...
DTO = ViewModel?
...del of the view. ViewModels typically are full or partial data from one or more objects (or DTOs) plus any additional members specific to the view's behavior (methods that can be executed by the view, properties to indicate how toggle view elements etc...). You can look at the viewmodel as all the d...
In C#, why is String a reference type that behaves like a value type?
...have been a value type (a struct), but the "value" would have been nothing more than a reference to the string. The .NET designers naturally decided to cut out the middleman (struct handling was inefficient in .NET 1.0, and it was natural to follow Java, in which strings were already defined as a re...
Using C# regular expressions to remove HTML tags
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What data type to use for hashed password field and what length?
...ing passwords. You should read the answer from Gilles on this thread for a more detailed explanation.
For passwords, use a key-strengthening hash algorithm like Bcrypt or Argon2i. For example, in PHP, use the password_hash() function, which uses Bcrypt by default.
$hash = password_hash("rasmuslerd...
Why is NaN not equal to NaN? [duplicate]
...n the very post you quoted: ` Many commenters have argued that it would be more useful to preserve reflexivity of equality and trichotomy on the grounds that adopting NaN != NaN doesn’t seem to preserve any familiar axiom. I confess to having some sympathy for this viewpoint, so I thought I would ...
Dynamic SQL - EXEC(@SQL) versus EXEC SP_EXECUTESQL(@SQL)
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sp_executesql is more likely to promote query plan reuse. When using sp_executesql, parameters are explicitly identified in the calling signature. This excellent article descibes this process.
The oft cited reference for many aspects of dyna...
Spark java.lang.OutOfMemoryError: Java heap space
...sible by checking the UI (it will say how much mem you're using)
Try using more partitions, you should have 2 - 4 per CPU. IME increasing the number of partitions is often the easiest way to make a program more stable (and often faster). For huge amounts of data you may need way more than 4 per CPU...