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Checking for the correct number of arguments
How do i check for the correct number of arguments (one argument). If somebody tries to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory.
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Accessing last x characters of a string in Bash
...ands to up to length characters of parameter starting at the character
specified by offset. If length is omitted, expands to the substring of parameter
starting at the character specified by offset. length and offset are arithmetic
expressions (see Shell Arithmetic). This is referred to as Substring...
Python - Check If Word Is In A String
I'm working with Python v2, and I'm trying to find out if you can tell if a word is in a string.
11 Answers
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Get difference between two lists
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Out[5]: set([1])
where you might expect/want it to equal set([1, 3]). If you do want set([1, 3]) as your answer, you'll need to use set([1, 2]).symmetric_difference(set([2, 3])).
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improv...
The 3 different equals
What is the difference between = , == , and === ?
5 Answers
5
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StringIO in Python3
...so you can end up with TypeErrors ( string argument expected, got 'bytes') if you make this change in isolation. You need to carefully distinguish btyes and str (unicode) in python 3.
– Andy Hayden
Apr 22 '15 at 3:13
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How to format a phone number with jQuery
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I've modified this to support 'change' events within input fields. jsfiddle.net/gUsUK
– Zach Shallbetter
May 29 '13 at 18:48
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How can I remove a specific item from an array?
...ay = [2, 5, 9];
console.log(array);
const index = array.indexOf(5);
if (index > -1) {
array.splice(index, 1);
}
// array = [2, 9]
console.log(array);
The second parameter of splice is the number of elements to remove. Note that splice modifies the array in place and returns...
Apache Spark: map vs mapPartitions?
What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks.
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How do I parse a string with a decimal point to a double?
...ert class ... do you have any ideas whether this is better, worse, and/or different than using CultureInfo.InvariantCulture?
– ChrisW
Aug 30 '09 at 21:23
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