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Python: finding an element in a list [duplicate]
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But this code gives error when element is not in the list.In current example context if I search for 'three' (i.e: li.index('three')) gives error.
– Kedar.Aitawdekar
May 28 '14 at 7:31
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Is it better to return null or empty collection?
... or "don't know". We could throw an exception, but it's not necessarily an error condition, and it doesn't necessarily drive us out of the normal program flow.
I've often been frustrated by systems that cannot distinguish between zero and no answer. I've had a number of times where a system has ask...
Postgis installation: type “geometry” does not exist
...I do it by this page . But when I import postgis.sql file, I get a lot of errors:
10 Answers
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Initialize a long in Java
...ormed.
Try this
byte a = 1; // declare a byte
a = a*2; // you will get error here
You get error because 2 is by default int.
Hence you are trying to multiply byte with int.
Hence result gets typecasted to int which can't be assigned back to byte.
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How to parse JSON in Scala using standard Scala classes?
...answer, it led me down the right path. However, it isn't great at handling error conditions. If the desired node does not exist, you get a cast exception. I've adapted this slightly to make use of Option to better handle this.
class CC[T] {
def unapply(a:Option[Any]):Option[T] = if (a.isEmpty) {
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.htaccess redirect all pages to new domain
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Average of 3 long integers
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answered May 30 '14 at 8:05
Patrick HofmanPatrick Hofman
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...稍后有 Gearman 把任务分发给相应的 Worker 来处理。
友情提示：如果主配置文件太臃肿的话，可以考虑使用子配置文件：
# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf
本文可以看作是Rsyslog入门指引，深入介...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...稍后有 Gearman 把任务分发给相应的 Worker 来处理。
友情提示：如果主配置文件太臃肿的话，可以考虑使用子配置文件：
# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf
本文可以看作是Rsyslog入门指引，深入介...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...稍后有 Gearman 把任务分发给相应的 Worker 来处理。
友情提示：如果主配置文件太臃肿的话，可以考虑使用子配置文件：
# Include all config files in /etc/rsyslog.d/
$IncludeConfig /etc/rsyslog.d/*.conf
本文可以看作是Rsyslog入门指引，深入介...