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How does the “this” keyword work?
... JavaScript code that is evaluated at the top-level, e.g. when directly inside a <script>:
<script>
alert("I'm evaluated in the initial global execution context!");
setTimeout(function () {
alert("I'm NOT evaluated in the initial global execution context.");
}, 1);
</scri...
Commenting in a Bash script inside a multiline command
...e '/^"{/d' | \
# more magic
sed -n -e '/^"/p' -e '/^print_value$/,/^option_id$/p' | \
# even more magic
sed -e '/^option_id/d' -e '/^print_value/d' -e 's/^"\(.*\)"$/\1/' | \
tr "\n" "," | \
# I hate phone numbers in my output
sed -e 's/,\([0-9]*-[0-9]*-[0-9]*\)/\n\1/g' -e 's/,$//' | \
# one more se...
Which is more efficient: Multiple MySQL tables or one large table?
...Originally it was set up in various tables meaning data is linked with UserIds and outputting via sometimes complicated calls to display and manipulate the data as required. Setting up a new system, it almost makes sense to combine all of these tables into one big table of related content.
...
JavaScript displaying a float to 2 decimal places
...
@Hankrecords what you said is not true. If i have '43.01' and I parseFloat then i get 43.01 BUT if i have '43.10' i will get 43.1 :D not what I want.
– Lucian Tarna
Oct 9 '18 at 15:11
...
Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...时数据检索。RTD 工作表函数使用以下语法：
"=RTD(ProgID, Server, String 1, String 2, ... String n)"
第一个变量 ProgID 表示Real-Time Data 服务器（RTD Server）的编程标识符 (ProgID)。Server 变量指示运行RTD Server的计算机的名称；如果RTD Server在...
Can I set an opacity only to the background image of a div?
...ght: 0;
background: url(test.jpg) center center;
opacity: .4;
width: 100%;
height: 100%;
}
See test case on jsFiddle
:before and ::before pseudo-element
Another trick is to use the CSS 2.1 :before or CSS 3 ::before pseudo-elements. :before pseudo-element is supported in IE from v...
Find element's index in pandas Series
...I admit that there should be a better way to do that, but this at least avoids iterating and looping through the object and moves it to the C level.
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How to remove all CSS classes using jQuery/JavaScript?
Instead of individually calling $("#item").removeClass() for every single class an element might have, is there a single function which can be called which removes all CSS classes from the given element?
...
What is the difference between jQuery: text() and html() ?
...t;/b>');
});
</script>
</head>
<body>
<div id="div1"></div>
<div id="div2"></div>
</body>
</html>
A difference that may not be so obvious is described in the jQuery API documentation
In the documentation for .html():
The .html(...
Android - border for button
...ow code
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient android:startColor="#FFFFFF"
android:endColor="#00FF00"
android:angle="270" />
<corners android:radius="3dp" />...