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.NET Format a string with fixed spaces
...lic Module (the way you do Extensions in VB.NET, a bit different than C#). My slight change is that it treats a null string as an empty string, and it pads an empty string with the width value (meets my particular needs). Hopefully this will convert easily to C# for anyone who needs it. If there's...
if/else in a list comprehension
...ession I write if before for then I have to add else part too". because if my l = [ 2, 3, 4, 5] then [x if x % 2 == 0 for x in l] give me error whereas [x if x % 2 == 0 else 200 for x in l] works. Yes I know to filter it I should write [ x for x in l if x % 2 == 0]. Sorry for botheration. Thanks fo...
html select option separator
...de worked for me great in jsfiddle, but when I tried to copy/paste it into my code, it didn't properly translate. So for those with that problem, the HTML encoding for the horizontal unicode box drawing character is ─ fileformat.info/info/unicode/char/2500/index.htm and there is also a h...
C# Java HashMap equivalent
...s
Java's HashMap has the put and get methods for setting/getting items
myMap.put(key, value)
MyObject value = myMap.get(key)
C#'s Dictionary uses [] indexing for setting/getting items
myDictionary[key] = value
MyObject value = myDictionary[key]
null keys
Java's HashMap allows null keys
.N...
Fastest way to duplicate an array in JavaScript - slice vs. 'for' loop
...the fastest way. However, it is even faster if you add the 0 begin index.
myArray.slice(0);
is faster than
myArray.slice();
http://jsperf.com/cloning-arrays/3
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Determine distance from the top of a div to top of window with javascript
...d a few things like .offset() and .offsetHeight , but I just can't wrap my brain around it. Thanks!
5 Answers
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Get Base64 encode file-data from Input Form
... recently implemented tar in the browser. As part of that process, I made my own direct Uint8Array->base64 implementation. I don't think you'll need that, but it's here if you want to take a look; it's pretty neat.
What I do now:
The code for converting to string from a Uint8Array is pretty si...
/bin/sh: pushd: not found
... But setting SHELL will not work in this case, see test1 in my answer, stackoverflow.com/questions/5193048/bin-sh-pushd-not-found/….
– hlovdal
Mar 4 '11 at 12:30
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JOIN queries vs multiple queries
... you are joining 3 or more tables on different keys, often databases (i.e. mysql) can only use one index per table, meaning maybe one of the joins will be fast (and use an index) whereas the others will be extremely slow. For multiple queries, you can optimize the indexes to use for each query.
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How can I close a buffer without closing the window?
...r people have said, if you mostly use vertical splits, switch sp with vsp. my .vimrc entry looks like this: cnoremap bd bp<bar>vsp<bar>bn<bar>bd
– Connor
Dec 17 '18 at 16:08
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