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How to make lists contain only distinct element in Python? [duplicate]
...t(set(my_list))
One disadvantage with this is that it won't preserve the order. You may also want to consider if a set would be a better data structure to use in the first place, instead of a list.
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MySQL, update multiple tables with one query
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Take the case of two tables, Books and Orders. In case, we increase the number of books in a particular order with Order.ID = 1002 in Orders table then we also need to reduce that the total number of books available in our stock by the same number in Books table.
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Detecting iOS / Android Operating system
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You can also Achieve this with user agent on php:
$userAgent = strtolower($_SERVER['HTTP_USER_AGENT']);
if(stripos($userAgent,'android') !== false) { // && stripos($userAgent,'mobile') !== false) {
header('Location: http://oursite.com/download/yourApp.apk');...
Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
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There are multiple reasons why the C compiler cannot automatically reorder the fields:
The C compiler doesn't know whether the struct represents the memory structure of objects beyond the current compilation unit (for example: a foreign library, a file on disc, network data, CPU page tables,...
How to trigger a file download when clicking an HTML button or JavaScript
...s like me that to set the Content-Disposition, all you have to do is: <?php header('Content-Disposition: attachment; filename="filename.here"'); ?>
– user124384
Jul 24 '15 at 15:08
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How to send JSON instead of a query string with $.ajax?
... @shorif2000 better late than never... the problem is that in $_POST in php you can only see application/x-www-form-urlencoded, if you want to read json data you must do file_get_contents("php://input") and perhaps then a json_decode()
– santiago arizti
Nov ...
boost::flat_map and its performance compared to map and unordered_map
...of a map. It doesn't seem to be nearly as popular as your typical map / unordered_map so I haven't been able to find any performance comparisons. How does it compare and what are the best use cases for it?
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一个自媒体的运营手记：我做公众号已经两年多了 - 资讯 - 清泛网 - 专注C/C...
...复公众号结果一部分直接回复了你，这个不是用户智商的问题，是因为有一少部分人比较随意，可能大致一看就回复你了。
这个都是推广中遇到的用户理解不对称问题。所以我在做图片的时候，在图片上写明了操作步骤，点击...
Doing HTTP requests FROM Laravel to an external API
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We can use package Guzzle in Laravel, it is a PHP HTTP client to send HTTP requests.
You can install Guzzle through composer
composer require guzzlehttp/guzzle:~6.0
Or you can specify Guzzle as a dependency in your project's existing composer.json
{
"require": {
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How can I use a carriage return in a HTML tooltip?
... @Tarquin They don't work in HTML, they just work specifically in PHP's double quotes because that's a feature of PHP's double quotes.
– Brilliand
May 26 '15 at 19:11
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