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What is the difference between precision and scale?
... significant digits.
Reference:
http://download.oracle.com/docs/cd/B28359_01/server.111/b28318/datatype.htm#CNCPT1832
That page also has some examples that will make you understand precision and scale.
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Check if a user has scrolled to the bottom
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@KevinVella Vella good combination is to use this with _.debounce() in underscore utility to prevent it firing until user has stopped scrolling - underscorejs.org/#debounce -
– JohnnyFaldo
Feb 10 '14 at 11:27
...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...cale-gen" was not installed and it turned out all I had to do is set the LC_ALL environment variable.
so the following command fixed it:
export LC_ALL="en_US.UTF-8"
hopefully it will help someone else...
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What is a stored procedure?
...tatype>
AS
<Body>
So for example:
CREATE PROCEDURE Users_GetUserInfo
@login nvarchar(30)=null
AS
SELECT * from [Users]
WHERE ISNULL(@login,login)=login
A benefit of stored procedures is that you can centralize data access logic into a single place that is then eas...
load scripts asynchronously
... remove logs
function checkStateAndCall(path, callback) {
var _success = false;
return function() {
if (!_success && (!this.readyState || (this.readyState == 'complete'))) {
_success = true;
console.log(path, 'is ready'); // FI...
Using the Android Application class to persist data
...nController extends Application {
private static ApplicationController _appCtrl;
public static ApplicationController getAppCtrl()
{
return _appCtrl;
}
}
Because subclasses of Application also can obtain the Resources, you could access them simply when you define a static ...
How can I generate Unix timestamps?
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@ĽubomírMlích On a SmartOS host (SunOS 5.11 joyent_20171026T003127Z), I've both /usr/bin/date +%s and /usr/xpg4/bin/date +%s` working. Combined with the POSIX.2 recommendation, I think this works on all Solaris too.
– Dereckson
Nov 5 '1...
How to access parent Iframe from JavaScript
...d Oct 10 '10 at 16:13
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ImageUtil 扩展：图像工具扩展，提供图像处理和变换功能 · App Inventor 2 中文网
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当 保存按钮.被点击
设置 保存路径 = "/sdcard/processed_image.jpg"
调用 ImageUtil1.Save 图片组件 保存路径
显示通知 "图像已保存到: " & 保存路径
高级应用
批量图像处理
当 批量处理按钮.被...
Use of def, val, and var in scala
...sed:
scala> something = 5 * 6
<console>:8: error: value something_= is not a member of object $iw
something = 5 * 6
^
When the class is defined like:
scala> class Person(val name: String, var age: Int)
defined class Person
and then instantiated with:
scala> def pe...