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How to get the first element of an array?
...)
var firstItem = yourArray.find(x=>x!==undefined);
I'd also like to include filter() here as an option to first "fix" the array in the copy and then get the first element while keeping the the original array intact (unmodified).
Another reason to include filter() here is that it existed bef...
How can I sort arrays and data in PHP?
...hp for an overview and links to further details.
Multi dimensional arrays, including arrays of objects
$array = array(
array('foo' => 'bar', 'baz' => 42),
array('foo' => ..., 'baz' => ...),
...
);
If you want to sort $array by the key 'foo' of each entry, you need a custom...
Correct use of Multimapping in Dapper
... one column named "Id" and on one column named "somethingId", make sure to include the first "Id" in the split clause. Even though Dapper splits by default on "Id", in this case it has to be set explicitly.
– Sbu
Nov 9 '17 at 7:47
...
Case-insensitive search
...searchstring="best";
let found = string.toLowerCase()
.includes(searchstring.toLowerCase());
includes() returns true if searchString appears at one or more positions or false otherwise.
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Ignore fields from Java object dynamically while sending as JSON from Spring MVC
...ated component and skipping all the internal fields that are automatically included. Thanks a lot!
– stx
Jul 18 '19 at 12:58
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How do HTML parses work if they're not using regexp?
...s mode and try to make out the best you can from the mess you encountered, including mismatched tags, [{]} style interlace, and all kinds of weirdness, trying to make the result look as good as you can and the inevitable failure the least painful... this is not something you can do with regexes.
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How to trigger a phone call when clicking a link in a web page on mobile phone
.... Note that pluses can be used to specify country code, and hyphens can be included simply for human eyes.
MDN Web Docs
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/a#Creating_a_phone_link
The HTML <a> element (or anchor element), along with its href attribute, creates a hyp...
Algorithm to return all combinations of k elements from n
...that many of the citations are behind a paywall. Is there a possibility to include either non-paywall links or include quotable snippets from sources?
– Terrance
May 24 '18 at 18:19
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Django: Get list of model fields?
... appname.Model.field_name, below cleans up the values from the second dot, includes the case in which an underscore was used in the field name as well as make them a title, so modify as needed for each unique situation. clean_field_names = [str(h).split('.')[2].replace("_", " ").title() for h in a...
What is the difference between float and double?
...2 = 1.999683772.
Using float and double, we can write a test program:
#include <stdio.h>
#include <math.h>
void dbl_solve(double a, double b, double c)
{
double d = b*b - 4.0*a*c;
double sd = sqrt(d);
double r1 = (-b + sd) / (2.0*a);
double r2 = (-b - sd) / (2.0*a);
...