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how to solve “ruby installation is missing psych” error?
I used rvm to install ruby 1.9.3. even though it was successfully installed, it complained about libyaml. and now every time i wanna install a gem (say rails) this warning shows up:
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Python append() vs. + operator on lists, why do these give different results?
Why do these two operations ( append() resp. + ) give different results?
7 Answers
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How do I find a default constraint using INFORMATION_SCHEMA?
I'm trying to test if a given default constraint exists. I don't want to use the sysobjects table, but the more standard INFORMATION_SCHEMA.
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How can I check if a value is a json object?
My server side code returns a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object?
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What is “lifting” in Haskell?
I don't understand what "lifting" is. Should I first understand monads before understanding what a "lift" is? (I'm completely ignorant about monads, too :) Or can someone explain it to me with simple words?
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Link to “pin it” on pinterest without generating a button
I have a page with tens or hundreds of posts, each one with social buttons.
I just can't generate all the buttons for each url: it is too slow (facebook, g+, twitter, pinterest... for hundreds of links). So, instead of the facebook share button to be generated on the fly, I use a simple img pointing...
Android EditText Max Length [duplicate]
I set up a max length of text in an EditText field.
8 Answers
8
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Best way to specify whitespace in a String.Split operation
I am splitting a string based on whitespace as follows:
11 Answers
11
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How to reference constants in EL?
How do you reference an constants with EL on a JSP page?
12 Answers
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