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Transitions on the CSS display property
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You can concatenate two transitions or more, and visibility is what comes handy this time.
div {
border: 1px solid #eee;
}
div > ul {
visibility: hidden;
opacity: 0;
transition: visibility 0s, opacity 0.5s linear;
}
div:hover > ul {
visibil...
Paging in a Rest Collection
... (think CouchDB or Persevere ). The problem I'm running into is how to handle the GET operation on the collection root if the collection is large.
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What is the minimum valid JSON?
...a JSON text as being a serialized object or array.
This means that only {} and [] are valid, complete JSON strings in parsers and stringifiers which adhere to that standard.
However, the introduction of ECMA-404 changes that, and the updated advice can be read here. I've also written a blog post on ...
Difference between document.addEventListener and window.addEventListener?
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The document and window are different objects and they have some different events. Using addEventListener() on them listens to events destined for a different object. You should use the one that actually has the event you are interested...
Recursion or Iteration?
...e is recursive call). Tail recursion should be recognized by the compiler and optimized to its iterative counterpart (while maintaining the concise, clear implementation you have in your code).
I would write the algorithm in the way that makes the most sense and is the clearest for the poor sucker...
Regex to match a digit two or four times
...t;-- alternation: four digits or two
\d{2}(?:\d{2})? <-- two digits, and optionally two more
(?:\d{2}){1,2} <-- two digits, times one or two
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Benchmarking (python vs. c++ using BLAS) and (numpy)
I would like to write a program that makes extensive use of BLAS and LAPACK linear algebra functionalities. Since performance is an issue I did some benchmarking and would like know, if the approach I took is legitimate.
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Using i and j as variables in Matlab
i and j are very popular variable names (see e.g., this question and this one ).
9 Answers
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Assign variable in if condition statement, good practice or not? [closed]
...ng whatever the value evaluates to be after the assignment. Is this understanding right?
– Michael Mao
Apr 5 '10 at 2:10
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Should I use px or rem value units in my CSS? [closed]
I am designing a new website and I want it to be compatible with as much browsers and browser settings as possible. I am trying to decide what unit of measurement I should use for the sizes of my fonts and elements, but am unable to find a conclusive answer.
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