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Functions that return a function
...ce to the function. Putting the parenthesis at the end of a function name, calls the function, returning the functions return value.
Demo
function a() {
alert('A');
}
//alerts 'A', returns undefined
function b() {
alert('B');
return a;
}
//alerts 'B', returns function a
function c() ...
What are all the differences between src and data-src attributes?
...image tag where the image loads the JPEG for you and displays it:
<img id="myImage" src="http://mydomain.com/foo.jpg">
<script>
var imageUrl = document.getElementById("myImage").src;
</script>
Example of 'data-src' on a non-image tag where the image is not loaded yet - it's...
Is asynchronous jdbc call possible?
I wonder if there is a way to make asynchronous calls to a database?
16 Answers
16
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How to get first element in a list of tuples?
I have a list like below where the first element is the id and the other is a string:
12 Answers
...
Inserting multiple rows in a single SQL query? [duplicate]
...data to insert at once, say 4 rows. My table has three columns: Person , Id and Office .
4 Answers
...
淘宝应对双\"11\"的技术架构分析 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...带来了挑战。为此，我们设计了通用的数据中间层——glider——来屏蔽这个影响。glider以HTTP协议对外提供restful方式的接口。数据产品可以通过一个唯一的URL获取到它想要的数据。
以上是淘宝海量数据产品在技术架构方面的一...
Garbage collector in Android
I have seen many Android answers that suggest calling the garbage collector in some situations.
11 Answers
...
How to use Git properly with Xcode?
...wagner/mergepbx
You will have to install it as a merge driver, so it gets called automatically when you have a merge conflict in your project file (the README.md will tell you how to do that).
It should work much better than using merge=union as mergepbx understands the semantics of your project f...
MySQL Database won't start in XAMPP Manager-osx
...
Didn't work for me: Starting MySQL ..................................................................................................... ERROR! The server quit without updating PID file (/Applications/XAMPP/xamppfiles/var/my...
`Apache` `localhost/~username/` not working
...rectory "/Users/kevin/Sites/">
Options Indexes MultiViews
AllowOverride None
Require all granted
</Directory>
Make sure to restart the Apache server afterwards with:
sudo apachectl restart
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