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How many double numbers are there between 0.0 and 1.0?
...e-11. Having good precision there is more useful than between 100 and 101. Read floating-point-gui.de for more information.
– Michael Borgwardt
Jun 5 '10 at 7:36
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Is Zookeeper a must for Kafka?
...s zookeeper so you need to first start a zookeeper server if
you don't already have one. You can use the convenience script
packaged with kafka to get a quick-and-dirty single-node zookeeper
instance.
As to why, well people long ago discovered that you need to have some way to coordinating t...
Most efficient way to remove special characters from string
...y one of the most efficient ways that you can do it.
You should of course read the character into a local variable or use an enumerator to reduce the number of array accesses:
public static string RemoveSpecialCharacters(this string str) {
StringBuilder sb = new StringBuilder();
foreach (cha...
psycopg2: insert multiple rows with one query
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Just confirmed this improvement myself. From what I've read psycopg2's executemany doesn't do anything optimal, just loops and does many execute statements. Using this method, a 700 row insert to a remote server went from 60s to <2s.
– Nelson
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How to complete a git clone for a big project on an unstable connection?
...I can get the connection back any moment, but then the git clone process already stopped working, and no way to get it running again. Is there some way to have a more failure-resistant git clone download?
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Using Razor, how do I render a Boolean to a JavaScript variable?
...thod, to string and to lower is definitely the cleanest in my option as it reads nicely in javascript.
– Frank Thomas
Apr 20 at 15:13
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count vs length vs size in a collection
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@DaveAbrahams - I never said that was the case. Read it again. I said it "tends to refer", I never even tried to make a specific statement that applied equally to all permutations of all collection classes in all languages.
– gbjbaanb
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Asynchronous Process inside a javascript for loop [duplicate]
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Worth to read for an explanation - async/await
– Srinivasan K K
Apr 4 '19 at 12:55
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Linux: copy and create destination dir if it does not exist
...hink you need the test -d: mkdir -p still succeeds even if the directory already exists.
– ephemient
Oct 7 '09 at 15:33
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How to compare Unicode characters that “look alike”?
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Thanks for the Unicode spec link. First time I ever read up on it. Small note from it: "Normalization Forms KC and KD must not be blindly applied to arbitrary text .. It is best to think of these Normalization Forms as being like uppercase or lowercase mappings: useful in cert...