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How to Deep clone in javascript
...first, a code example which clones object literals, any primitives, arrays and DOM nodes.
function clone(item) {
if (!item) { return item; } // null, undefined values check
var types = [ Number, String, Boolean ],
result;
// normalizing primitives if someone did new String('a...
The specified type member 'Date' is not supported in LINQ to Entities Exception
...t SQL.
The solution is to use the Date methods outside the LINQ statement and then pass in a value. It looks as if Convert.ToDateTime(rule.data).Date is causing the error.
Calling Date on a DateTime property also cannot be translated to SQL, so a workaround is to compare the .Year .Month and .Day...
TSQL Pivot without aggregate function
...er that DBColumnName is metadata - you literally filter by "CustomerID = 1 AND DBColumnName = 'FirstName'". Of course, this breaks if you have multiple FirstName rows for a given CustomerID, but if you are creating your tables properly both CustomerID and DBColumnName are part of your primary key......
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
低功耗蓝牙(BLE)以低功耗、低成本、开发简便逐渐被广泛应用,本文主要介绍一款较为通用、价格低廉的BLE设备从零开始如何利用App Inventor 2开发一款自己专属的手机蓝牙App应用。BLE与经典蓝牙的区别可参考:《低功耗蓝牙(BLE) ...
How to get request URI without context path?
...ere a reason to use this instead of getServletPath()? I'm writing a filter and I noticed that getPathInfo() returns null, but getServletPath() returns the path minus the context (suitable for passing on to the request dispatcher).
– Jason C
Jun 25 '17 at 23:00
...
App Inventor 2 数学积木完全指南:从加减乘除到位运算,一篇搞定所有计算...
App Inventor 2 数学积木完全指南:从加减乘除到位运算,一篇搞定所有计算需求
做 App 的时候,你觉得最离不开却又最容易被忽视的积木是什么?答案就是——数学运算积木。无论是计算购物总价、处理传感器数据,还是做游戏...
How to make pipes work with Runtime.exec()?
...
Write a script, and execute the script instead of separate commands.
Pipe is a part of the shell, so you can also do something like this:
String[] cmd = {
"/bin/sh",
"-c",
"ls /etc | grep release"
};
Process p = Runtime.getRuntime().exec(...
Use tab to indent in textarea
... }
});
jQuery: How to capture the TAB keypress within a Textbox
How to handle <tab> in textarea?
http://jsfiddle.net/jz6J5/
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How do I remove a single file from the staging area (undo git add)?
...ith files already in the index. I make changes to several files, open Git and add these files to my staging area with "git add ."
...
API to automatically upload apk to Google Play? [closed]
...t allows you to upload to any channel (ie. alpha, beta...) or update title and description and more.
From the docs:
Uploading new versions of an app Releasing apps, by assigning APKs to various Tracks (alpha, beta, staged rollout, or production)
Creating and modifying Google Play Store li...
