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Different ways of loading a file as an InputStream
...s the answers in this question, suggest that loading absolute URLs, like "/foo/bar.properties" treated the same by class.getResourceAsStream(String) and class.getClassLoader().getResourceAsStream(String). This is NOT the case, at least not in my Tomcat configuration/version (currently 7.0.40).
MyCl...
Insert picture/table in R Markdown [closed]
.... "Resizing images" can be done directly. For example:
{#id .class width=30 height=20px}
{#id .class width=50% height=50%}
The dimensions can be provided with no units (pixels assumed), or with "px, cm, mm, in, i...
Quicksort vs heapsort
Both quicksort and heapsort do in-place sorting. Which is better? What are the applications and cases in which either is preferred?
...
Creating an R dataframe row-by-row
...then during your operations insert row at a time
DF[i, ] <- list(1.4, "foo")
That should work for arbitrary data.frame and be much more efficient. If you overshot N you can always shrink empty rows out at the end.
sha...
What is a “surrogate pair” in Java?
I was reading the documentation for StringBuffer , in particular the reverse() method. That documentation mentions something about surrogate pairs . What is a surrogate pair in this context? And what are low and high surrogates?
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It is more efficient to use if-return-return or if-else-return?
...
From Chromium's style guide:
Don't use else after return:
# Bad
if (foo)
return 1
else
return 2
# Good
if (foo)
return 1
return 2
return 1 if foo else 2
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Access nested dictionary items via a list of keys?
... _element = _element[key]
_element[keys[-1]] = value
example = {"foo": { "bar": { "baz": "ok" } } }
keys = ['foo', 'bar']
nested_set(example, "yay", *keys)
print(example)
Output
{'foo': {'bar': 'yay'}}
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How to put multiple statements in one line?
...of simple statements, separated by semi-colon:
for i in range(10): print "foo"; print "bar"
But as soon as you add a construct that introduces an indented block (like if), you need the line break. Also,
for i in range(10): print "i equals 9" if i==9 else None
is legal and might approximate wha...
Programmatically select text in a contenteditable HTML element?
...AllRanges();
sel.addRange(range);
}
var el = document.getElementById("foo");
selectElementContents(el);
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