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How to get the first line of a file in a bash script?
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head takes the first lines from a file, and the -n parameter can be used to specify how many li...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
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12 Answers
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Which is better, number(x) or parseFloat(x)?
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318
The difference between parseFloat and Number
parseFloat/parseInt is for parsing a string, whil...
What is the difference between HashSet and List?
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Unlike a List<> ...
A HashSet is a List with no duplicate members.
Because a HashSet is...
How can I trim leading and trailing white space?
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13 Answers
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Most efficient way to prepend a value to an array
...more efficient way of prepending to the array that would not require O(N + 1) steps?
9 Answers
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Getting current date and time in JavaScript
...() returns a zero-based number so to get the correct month you need to add 1, so calling .getMonth() in may will return 4 and not 5.
So in your code we can use currentdate.getMonth()+1 to output the correct value. In addition:
.getDate() returns the day of the month <- this is the one you want...
How to loop through all but the last item of a list?
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for x in y[:-1]
If y is a generator, then the above will not work.
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How to find the largest file in a directory and its subdirectories?
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15 Answers
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