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Calculating how many minutes there are between two times
I have a datagridview in my application which holds start and finish times. I want to calculate the number of minutes between these two times. So far I have got:
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How to get the last character of a string in a shell?
...y you need to quote your variables:
echo "${str:$i:1}"
Otherwise, bash expands the variable and in this case does globbing before printing out. It is also better to quote the parameter to the script (in case you have a matching filename):
sh lash_ch.sh 'abcde*'
Also see the order of expansions in ...
Java Class.cast() vs. cast operator
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I've only ever used Class.cast(Object) to avoid warnings in "generics land". I often see methods doing things like this:
@SuppressWarnings("unchecked")
<T> T doSomething() {
Object o;
// snip
return (T) o;
}
It's often best to replace it by:
<T> T doSomething(Class<...
jQuery.parseJSON throws “Invalid JSON” error due to escaped single quote in JSON
I’m making requests to my server using jQuery.post() and my server is returning JSON objects (like { "var": "value", ... } ). However, if any of the values contains a single quote (properly escaped like \' ), jQuery fails to parse an otherwise valid JSON string. Here’s an example of what I m...
How to remove single character from a String
...other mutator methods.
Just delete the characters that you need to delete and then get the result as follows:
String resultString = sb.toString();
This avoids creation of unnecessary string objects.
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How to get the anchor from the URL using jQuery?
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You can use the .indexOf() and .substring(), like this:
var url = "www.aaa.com/task1/1.3.html#a_1";
var hash = url.substring(url.indexOf("#")+1);
You can give it a try here, if it may not have a # in it, do an if(url.indexOf("#") != -1) check like t...
Do you need to use path.join in node.js?
... case since back in the DOS days). The only real issue is that Windows command-line processors (or, more specifically, Windows-native command-line utilities) tend to interpret forward slashes as option specifiers rather than path components. Therefore, you need a backslashed path if you need to pass...
Looking for simple Java in-memory cache [closed]
...mory cache that has good concurrency (so LinkedHashMap isn't good enough), and which can be serialized to disk periodically.
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Intellij IDEA generate for-each/for keyboard shortcut
Is there a keyboard shortcut generating a foreach and also for loop?
7 Answers
7
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PHP: How to handle
... Upgrade PHP/libxml until it works (I've never had any problems with CDATA and SimpleXML.) You may want to try your luck with LIBXML_NOCDATA otherwise.
– Josh Davis
Jun 4 '10 at 1:56
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