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How to automatically reload a page after a given period of inactivity
...u want to refresh the page
// bassed off the user inactivity.
var refresh_rate = 200; //<-- In seconds, change to your needs
var last_user_action = 0;
var has_focus = false;
var lost_focus_count = 0;
// If the user loses focus on the browser to many times
// we want to refresh anyway even if t...
Can you use if/else conditions in CSS?
...at looks something like this:
p {
background-position: <?php echo (@$_GET['foo'] == 'bar')? "150" : "4"; ?>px 8px;
}
In this case, you will however have a performance impact, since caching such a stylesheet will be difficult.
...
How to check if a string starts with a specified string? [duplicate]
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Use the substr function to return a part of a string.
substr( $string_n, 0, 4 ) === "http"
If you're trying to make sure it's not another protocol. I'd use http:// instead, since https would also match, and other things such as http-protocol.com.
substr( $string_n, 0, 7 ) === "http://"
An...
YouTube Video Embedded via iframe Ignoring z-index?
...o player" width="480" height="390" src="http://www.youtube.com/embed/lzQgAR_J1PI?wmode=transparent" frameborder="0" wmode="Opaque">
or this
//Fix z-index youtube video embedding
$(document).ready(function (){
$('iframe').each(function(){
var url = $(this).attr("src");
$(thi...
How do you configure an OpenFileDialog to select folders?
...ion does not work on VS2010 and VS2017 either!
– AleX_
Apr 13 '17 at 14:11
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普通码农和CTO之间的差距，就是这7点了 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...那么我们的沟通能力应该足够我们搞定“萌妹子”的。^_^
学习技术而不是工具
在新框架，新方法，新工具横行的今天我们很难判断出哪些是“技术”，哪些是“工具”。我个人认为程序员不存在——Java程序员、Python程序员、A...
Can I bind an array to an IN() condition?
...
<?php
$ids = array(1, 2, 3, 7, 8, 9);
$inQuery = implode(',', array_fill(0, count($ids), '?'));
$db = new PDO(...);
$stmt = $db->prepare(
'SELECT *
FROM table
WHERE id IN(' . $inQuery . ')'
);
// bindvalue is 1-indexed, so $k+1
foreach ($ids as $k => $id)
$stmt->...
Right HTTP status code to wrong input
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For me link (fb-developers.info/tech/fb_dev/faq/general/gen_10.html) leads to a random ad. I think the domain was spoofed
– dmitry502
Jun 29 at 8:39
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FloatActionBtn 扩展：悬浮操作按钮扩展，可自定义颜色、大小、图标和位置 ...
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调用 FloatActionBtn1.SetIconFromAsset 设置资源图标为"custom_icon"
调用 FloatActionBtn1.SetFabColor 设置按钮颜色为绿色
调用 FloatActionBtn1.SetIconColor 设置图标颜色为白色
3. 多位置按钮
在不同位置显示悬浮按钮：
...
How to change the background color of a UIButton while it's highlighted?
...EndImageContext()
return image
}
func setBackgroundColor(_ color: UIColor, for state: UIControlState) {
self.setBackgroundImage(imageWithColor(color: color), for: state)
}
}
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