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Testing for empty or nil-value string [duplicate]
I'm trying to set a variable conditionally in Ruby. I need to set it if the variable is nil or empty (0 length string). I've come up with the following:
...
Error: invalid_client no application name
I am using Google Apps API for my application and trying to authorize it using OAuth2. I have created a project and an application within it using the Google API console. I am using the following URL for authorization:
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Controls on Pivot disappear
I have an app with a pivot control. The pivot control has two items (pages), both contain a grid . The grids contain a few buttons and one a map and the other a text block. When the app first runs the pivot works as expected. However, after the app has been running some time, like a day, all the co...
ATL创建的ActiveX(COM组件)实现JS回调 - C/C++ - 清泛网 - 专注C/C++及内核技术
ATL创建的ActiveX(COM组件)实现JS回调最近公司的产品需要使用ActiveX文件上传。讨论了基本所有的技术，最后还是决定C++搞个ActiveX。。。但上传的回调费了半天劲，才搞定。代码...最近公司的产品需要使用ActiveX文件上传。讨论了基...
PHP报错：Only variables should be passed by reference - C/C++ - 清泛网 - 专注C/C++及内核技术
PHP报错：Only variables should be passed by reference错误信息如下：Strict Standards: Only variables should be passed by reference in D: wamp ecshop includes cls_template.php...错误信息如下：
Strict Standards: Only variables should be passed by reference in xxx\ecshop\includes\c...
VS工程“生成事件”之文件拷贝 - C/C++ - 清泛网 - 专注C/C++及内核技术
...件”之文件拷贝有时工程下面引用了lib文件，但是编译Debug Release等版本时需要将dll拷至指定目录才能运行，如果有多个编译版本需要拷贝多份，这样不便于...有时工程下面引用了lib文件，但是编译Debug/Release等版本时需要将dll拷...
如何获取IE (控件)的所有链接（包括Frameset, iframe） - C/C++ - 清泛网 -...
如何获取IE (控件)的所有链接（包括Frameset, iframe）IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节点列表：CComPtr<IHTMLElement> body;...CComPtr<IDispatc...IE 顶层 body 节点通过IHTMLElement->get_all 方法无法获取iframe 里面的节...
Ora-00257 错误处理一列 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...一列sqlplus assysdba报错ORA-12162切回系统确认系统当前的ORACLE_HOME和ORACLE_SID环境变量[oracle@asdlabdb01~]$echo$ORACLE_HOME空的[oracle...sqlplus /as sysdba
报错ORA-12162
切回系统
确认系统当前的ORACLE_HOME和ORACLE_SID环境变量
[oracle@asdlabdb01 ~]$ echo $...
date(): It is not safe to rely on the system\'s timezone settings.解决...
date(): It is not safe to rely on the system's timezone settings.解决方法date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezon...date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone se...
xunsearch主键重复、搜索结果重复 - 更多技术 - 清泛网 - 专注C/C++及内核技术
xunsearch主键重复、搜索结果重复使用 $xs->index->update(key) 建立新索引时，可能由于缓存没有及时写入服务器主索引，因此重复执行该语句可能就会导致同一记录重复插入
try {
$xs = new XS('itech.so');
$index = ...