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What is an idempotent operation?
What is an idempotent operation?
15 Answers
15
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Ruby class types and case statements
... Thanks! Sorry to dupe (or sort of dupe), but several searches didn't turn up that previous question. It seems that the use of === by the case statement is quite a common problem, now that I see this is the problem. This should probably be pointed out more often in tutorials and such (b...
Are table names in MySQL case sensitive?
...n the my.cnf configuration file under [mysqld]).
Read the section: 10.2.2 Identifier Case Sensitivity for more information.
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How do i put a border on my grid in WPF?
How do i put a border on my grid in C#/WPF?
6 Answers
6
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R programming: How do I get Euler's number?
...ancing at wikipedia, it seems this reading of "Euler's constant" is quite widespread (since there's even a note at the top of the page you linked to the page for e).
– Frank
Jan 20 '16 at 21:31
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git branch -d gives warning
... But origin/old_branch is merged into origin/master. Later I did git pull origin on master branch. Still same error. Isn't this bug in GH ?
– vikramvi
Mar 8 '18 at 11:06
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Better way to set distance between flexbox items
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Demo
.upper
{
margin:30px;
display:flex;
flex-direction:row;
width:300px;
height:80px;
border:1px red solid;
padding:5px; /* this */
}
.upper > div
{
flex:1 1 auto;
border:1px red solid;
text-align:center;
margin:5px; /* and that, will result in a 10px gap */
}
.up...
Skip rows during csv import pandas
... Yea thanks, I just needed to know that the index was specified inside square brackets [].
– thosphor
Dec 17 '13 at 15:25
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How to convert list of tuples to multiple lists?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
Hyphen, underscore, or camelCase as word delimiter in URIs?
...use the hyphen separates words (so that a search engine can index the individual words), and is not a word character. Underscore is a word character, meaning it should be considered part of a word.
Double-click this in Chrome: camelCase
Double-click this in Chrome: under_score
Double-click this in ...