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Expand a random range from 1–5 to 1–7
Given a function which produces a random integer in the range 1 to 5, write a function which produces a random integer in the range 1 to 7.
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How to use my view helpers in my ActionMailer views?
...rtMailer views ( app/views/report_mailer/usage_report.text.html.erb ). How do I do this?
7 Answers
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Creating a new dictionary in Python
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Is there any difference between dict() and {}? Or do people just prefer one over the other?
– Matt
Mar 2 '12 at 17:13
53
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git: Your branch is ahead by X commits
How does this actually come about?
18 Answers
18
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Becoming better at Vim [closed]
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"Why, oh WHY, do those #?@! nutheads use vi?" is a nice introduction to "the Vim way", especially about text objects which are one of the most defining features of Vim.
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Macro vs Function in C
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Macros are error-prone because they rely on textual substitution and do not perform type-checking. For example, this macro:
#define square(a) a * a
works fine when used with an integer:
square(5) --> 5 * 5 --> 25
but does very strange things when used with expressions:
square(1 + ...
How do I pass parameters to a jar file at the time of execution?
How do I pass parameters to a JAR file at the time of execution?
5 Answers
5
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How do you check if a variable is an array in JavaScript? [duplicate]
...array. you can read more about it here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
variable instanceof Array
This method runs about 1/3 the speed as the first example. Still pretty solid, looks cleaner, if you're all about pretty code and not so ...
UnicodeEncodeError: 'ascii' codec can't encode character u'\xa0' in position 20: ordinal not in rang
... script accepts bytes from the outside world, but all processing should be done in unicode. Only when you are ready to output your data should it be mushed back into bytes!
– Andbdrew
Mar 30 '12 at 12:29
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Convert seconds to HH-MM-SS with JavaScript?
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Don't you know datejs? it is a must know.
Using datejs, just write something like:
(new Date).clearTime()
.addSeconds(15457)
.toString('H:mm:ss');
--update
Nowadays date.js is outdated and not maintai...