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efficient circular buffer?
...s answer is very misleading - Python's deque appears to be quite fast, but converting from and to numpy arrays slows it down considerably in the benchmarks you link to.
– xitrium
Dec 11 '19 at 18:09
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wkhtmltopdf: cannot connect to X server
I have been using wkthmltopdf to convert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests by developers to have this run on servers without GUI, I am pretty sure it runs a virtual X server in...
Java 8 method references: provide a Supplier capable of supplying a parameterized result
...hrow. Otherwise you will get an error message like MyException cannot be converted to java.lang.RuntimeException
Update:- This was an issue with an older version of JDK. I don't see this issue with the latest versions.
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Why doesn't String switch statement support a null case?
...alueOf() allows you to use a null String in a switch. If it finds null, it converts it to "null", otherwise it just returns the same String you passed it. If you don't handle "null" explicitly, then it will go to default. The only caveat is that there is no way of distinguishing between the String "...
HTML-encoding lost when attribute read from input field
...finements - they appear to be handling an obscure Unicode issue as well as converting all non-alphanumeric characters to entities. I was under the impression the latter was not necessary as long as you have an UTF8 charset specified for your document.
I will note that (4 years later) Django still d...
Padding is invalid and cannot be removed?
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My issue was that the string to be decrypted was being converted to lower case before I tried to decrypt it. I was obsessing with the padding and ciphers and all that stuff, but it turned out it was just bad input. Sometimes you just need to take a step back!
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How to get current time with jQuery
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Convert a Date object to an string, using one of Date.prototype's conversion getters, for example:
var d = new Date();
d+''; // "Sun Dec 08 2013 18:55:38 GMT+0100"
d.toDateString(); // "Sun Dec 08 2013"...
How to check if a string is a valid hex color representation?
...and ignore it and anything after it. It then takes the beginning "abc" and convert it to 2748 (which is also the result of parseInt("abcZab", 16), proving that's the logic happening). As the name implies, parseInt parses a string. Just like if you were parsing a number with units on it with a radix ...
Loop through files in a folder using VBA?
...2 Then
FileExtStr = ".xls": FileFormatNum = -4143
Else
Select Case xWb.FileFormat
Case 51:
FileExtStr = ".xlsx": FileFormatNum = 51
Case 52:
If Application.ActiveWorkbook.HasVBProject Then
FileExtStr = "....
How to efficiently build a tree from a flat structure?
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trying to convert this approach to C#.
– hakan
Feb 21 '17 at 11:53
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