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How to get the first item from an associative PHP array?
If I had an array like:
15 Answers
15
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Select every Nth element in CSS
...elements within the same parent element are of the same element type, div. If you have any other elements of different types such as h1 or p, you will need to use :nth-of-type() instead of :nth-child() to ensure you only count div elements:
<body>
<h1></h1>
<div>1</di...
Find first element by predicate
...ow() (for a more meaningful error instead of a NSEE) as you might not know if the operations applied to the stream pipeline will result in an element.
– Alexis C.
Feb 24 '16 at 17:22
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Difference between left join and right join in SQL Server [duplicate]
...ft join Table1 (or its identical pair, Table1 right join Table2) to see a difference. This query should give you more rows, since Table2 contains a row with an id which is not present in Table1.
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Finding Key associated with max Value in a Java Map
...ntry = null;
for (Map.Entry<Foo, Bar> entry : map.entrySet())
{
if (maxEntry == null || entry.getValue().compareTo(maxEntry.getValue()) > 0)
{
maxEntry = entry;
}
}
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Adding a new value to an existing ENUM Type
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NOTE if you're using PostgreSQL 9.1 or later, and you are ok with making changes outside of a transaction, see this answer for a simpler approach.
I had the same problem few days ago and found this post. So my answer can be hel...
How to make the tab character 4 spaces instead of 8 spaces in nano?
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If you use nano with a language like python (as in your example) it's also a good idea to convert tabs to spaces.
Edit your ~/.nanorc file (or create it) and add:
set tabsize 4
set tabstospaces
If you already got a file w...
Understanding the ngRepeat 'track by' expression
I'm having difficulties understanding how the track by expression of ng-repeat in angularjs works. The documentation is very scarce: http://docs.angularjs.org/api/ng/directive/ngRepeat
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How to append to a file in Node?
...('fs');
fs.appendFile('message.txt', 'data to append', function (err) {
if (err) throw err;
console.log('Saved!');
});
Synchronously:
const fs = require('fs');
fs.appendFileSync('message.txt', 'data to append');
But if you append repeatedly to the same file, it's much better to reuse the ...
SQL Server Output Clause into a scalar variable
... But then I'd have to "SELECT @someInt = ID FROM @ID". I wanted to know if its possible to skip that extra step (and intermediary table variable) if all I need is the resulting int.
– Benoittr
Apr 5 '11 at 21:33
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