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Removing all empty elements from a hash / YAML?
...Hash#reject. Or call the method Hash#compact!.
– tokland
Nov 6 '16 at 20:07
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How to loop through a HashMap in JSP?
...ctice. I recommend to install JSTL (just drop the JAR file in /WEB-INF/lib and declare the needed taglibs in top of JSP). It has a <c:forEach> tag which can iterate over among others Maps. Every iteration will give you a Map.Entry back which in turn has getKey() and getValue() methods.
Here's ...
Defining an abstract class without any abstract methods
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And it's not just the OP. Look at all the upvotes the question has gotten!
– Marc W
Jan 27 '11 at 0:20
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Error 1046 No database Selected, how to resolve?
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In my case, I had used mysqldump to export a database and was running into this upon import. I just had to edit the exported sql file to add these two commands to the top of it.
– bh5k
Oct 11 '12 at 17:01
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What is the best way to implement a “timer”? [duplicate]
...is question, "best" is defined as most reliable (least number of misfires) and precise. If I specify an interval of 15 seconds, I want the target method invoked every 15 seconds, not every 10 - 20 seconds. On the other hand, I don't need nanosecond accuracy. In this example, it would be acceptable f...
How does the following LINQ statement work?
...conversion operators which allow you to make a copy/snapshot of the result and access is as many times you want, without the need to re-execute the query.
If you want the output to be 2,4,6, use .ToList():
var list = new List<int>{1,2,4,5,6};
var even = list.Where(m => m%2 == 0).ToList()...
Does .asSet(…) exist in any API?
...nswered Dec 23 '16 at 16:46
Mr. AndersonMr. Anderson
1,1661212 silver badges1515 bronze badges
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EditText maxLines not working - user can still input more lines than set
...ds to the maximum height of the EditText, it controls the outer boundaries and not inner text lines.
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str.startswith with a list of strings to test for
I'm trying to avoid using so many if statements and comparisons and simply use a list, but not sure how to use it with str.startswith :
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How can I download HTML source in C#
...nkfully however, most StackOverflow respondents keep example code as clear and concise as possible. Making example code closer to "real life" would just add noise.
– Chris Rogers
Mar 4 '15 at 2:49
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