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How to select only the first rows for each unique value of a column
Let's say I have a table of customer addresses:
5 Answers
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How to sort strings in JavaScript
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No, I mean the first line of the table, @Adrien - IE supports localeCompare() going back many versions, but does not support specifying the locale until version 11. Note also the questions that Dead.Rabit linked to.
– Shog9
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Tab space instead of multiple non-breaking spaces (“nbsp”)?
...t you really want, but its browser support has been erratic. Failing that, table-layout or maybe flexbox are your best bets.
– Alohci
May 30 '17 at 12:53
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What is a mutex?
...ion (In critical section multi threads share a common variable, updating a table, writing a file and so on), it releases the lock when it leaves critical section.
What is a Race Condition?
A race condition occurs when two or more threads can access shared data and they try to change it at the same t...
CSS container div not getting height
...ter, .clearfix::before {
content: '';
clear: both;
display: table;
}
Or you could try display:inline-block; property, then you don't need to add any clearfix.
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Pandas every nth row
...2nd row it would be df.iloc[1::5, :].
– Little Bobby Tables
Nov 13 '16 at 17:18
17
You can omit t...
The shortest possible output from git log containing author and date
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Fixed width columns table: alias glop="git log --pretty=format:'%C(yellow)%h|%Cred%ad|%Cblue%an|%Cgreen%d %Creset%s' --date=short | column -ts'|' | less -r"
– Ciro Santilli 郝海东冠状病六四事件法轮功
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Init method in Spring Controller (annotation version)
...choosen framework. The old system brings many circular dependencies to the table and I therefore must use setter-dependency a lot. That gave me some headaches since I could not trust @PostConstruct since autowiring/injection by setter was not yet done. The order is constructor, @PostConstruct then a...
Difference between jQuery’s .hide() and setting CSS to display: none
...le.display;
$('.displayvalue').text(display);
}
div {
display: table-cell;
border: 1px solid;
padding: 5px;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<p>
<button class="hide">Hide</button>
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What is the preferred syntax for defining enums in JavaScript?
...r example).
Remember, in JavaScript an object is just like a map or hash table. A set of name-value pairs. You can loop through them or otherwise manipulate them without knowing much about them in advance.
Example
for (var sz in SIZE) {
// sz will be the names of the objects in SIZE, so
// '...