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Count the number occurrences of a character in a string
...ences of substring sub in the range [start, end]. Optional arguments start and end are interpreted as in slice notation.
>>> sentence = 'Mary had a little lamb'
>>> sentence.count('a')
4
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PHPUnit assert that an exception was thrown?
...s->setExpectedException(InvalidArgumentException::class);
//...and then add your test code that generates the exception
exampleMethod($anInvalidArgument);
}
}
expectException() PHPUnit documentation
PHPUnit author article provides detailed explanation on testing exception...
Splitting a Java String by the pipe symbol using split(“|”)
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You need
test.split("\\|");
split uses regular expression and in regex | is a metacharacter representing the OR operator. You need to escape that character using \ (written in String as "\\" since \ is also a metacharacter in String literals and require another \ to escape it).
You...
What's the magic of “-” (a dash) in command-line parameters?
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If you mean the naked - at the end of the tar command, that's common on many commands that want to use a file.
It allows you to specify standard input or output rather than an actual file name.
That's the case for your first and third example. For example, the cdrecord com...
AngularJS - placeholder for empty result from filter
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The problem is that the "Nothing here!" part is shown and hidden really quickly. When you get data with an ajax request there is an delay before the returned data is shown and in that time you can see the "Nothing here!" part appear and disappear.
– Temega
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JQuery string contains check [duplicate]
... @RedSwan: you could convert the string to uppercase or lowercase and then do the comparison, problem solved.
– diggersworld
Nov 8 '14 at 9:40
1
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What is the inverse function of zip in python? [duplicate]
I've used the zip() function from the numpy library to sort tuples and now I have a list containing all the tuples. I had since modified that list and now I would like to restore the tuples so I can use my data. How can I do this?
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How to set environment variables from within package.json
... variables from within package.json to be used with npm start like commands?
14 Answers
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AngularJS check if form is valid in controller
...ered Nov 13 '14 at 16:28
DamsorianDamsorian
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How can I wrap text to some length in Vim?
...wer)). Then you can reformat your text by highlighting it (in visual mode) and typing gq. (textwidth can be abbreviated as tw, thus :set tw=30.)
Option 2 can be toggled by running :set wrap / :set nowrap. This will wrap lines which are too long for the window.
Both are independent.
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