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JavaScript property access: dot notation vs. brackets?
...vious fact that the first form could use a variable and not just a string literal, is there any reason to use one over the other, and if so under which cases?
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How to make a div 100% height of the browser window
I have a layout with two columns - a left div and a right div .
35 Answers
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Why do we always prefer using parameters in SQL statements?
I am very new to working with databases. Now I can write SELECT , UPDATE , DELETE , and INSERT commands. But I have seen many forums where we prefer to write:
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Android: Tabs at the BOTTOM
I've seen some chatter about this, but nothing definite.
Is there a way to put the tabs in a TabWidget to the bottom of the screen?
If so, how?
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How do I pass a method as a parameter in Python
Is it possible to pass a method as a parameter to a method?
8 Answers
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Count rows with not empty value
...t the rows which have a not empty content (including formula), but a cell with
13 Answers
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Adding a column to a data.frame
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Data frames can be indexed in several modes. When [ and [[ are used with a single vector index (x[i] or x[[i]]), they index the data frame as if it were a list.
my.dataframe["new.col"] <- a.vector
my.dataframe[["new.col"]] <- a.vector
The data.frame method for $, treats x as a lis...
How do I apply CSS3 transition to all properties except background-position?
I'd like to apply a CSS transition to all properties apart from background-position.
I tried to do it this way:
6 Answers
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How to install Android SDK Build Tools on the command line?
...e sdk -u -a -t 1,2,3,4,..,n
Where 1,2,..,n is the package number listed with the list command above
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How do you match only valid roman numerals with a regular expression?
...this:
^M{0,4}(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$
Breaking it down, M{0,4} specifies the thousands section and basically restrains it to between 0 and 4000. It's a relatively simple:
0: <empty> matched by M{0}
1000: M matched by M{1}
2000: MM matched by M{2}
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