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How to easily initialize a list of Tuples?

... c# 7.0 lets you do this: var tupleList = new List<(int, string)> { (1, "cow"), (5, "chickens"), (1, "airplane") }; If you don't need a List, but just an array, you can do: var tupleList = new(int, string)[] { (1, "cow"), (5, "chickens"),...
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How to manually trigger validation with jQuery validate?

...r unobtrusive validation only for this element if in place // add your extra logic here to execute only when element is valid } Note that validate() needs to be called on the form before checking it using this method. Documentation link: https://jqueryvalidation.org/valid/ ...
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Get first and last day of month using threeten, LocalDate

... Extra info: YearMonth yearMonth = YearMonth.parse("202004",DateTimeFormatter.ofPattern("yyyyMM")); – egemen Jan 7 at 8:12 ...
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How do I change the background color of a plot made with ggplot2

...m theme, based on theme_gray but with some of your changes and a few added extras including control of gridline colour/size (more options available to play with at ggplot2.org): theme_jack <- function (base_size = 12, base_family = "") { theme_gray(base_size = base_size, base_family = base_f...
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Git: How to edit/reword a merge commit's message?

...t means that if you want to actually add a note to a merge, you have to do extra work. So people don't. Note that, before Git 2.17 (Q2 2018), "git rebase -p" mangled log messages of a merge commit, which is now fixed. See commit ed5144d (08 Feb 2018) by Gregory Herrero (``). Suggested-by: Vegar...
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How to implement a queue with three stacks?

... stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution People near Sedgewick have confirmed they are not aware of a 3-stack solution within all the constraints of the original question DETAILS There are two i...
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Choose File Dialog [closed]

... need to override onCreateDialog in an Activity. //In an Activity private String[] mFileList; private File mPath = new File(Environment.getExternalStorageDirectory() + "//yourdir//"); private String mChosenFile; private static final String FTYPE = ".txt"; private static final int DIALOG_LOAD_FI...
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MySQL, better to insert NULL or empty string?

...all these values, is it better practice to insert a NULL value or an empty string into the DB columns where the user didn't put any data? ...
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How do Python functions handle the types of the parameters that you pass in?

...index: int = 0) -> int: return l[index] Note that we now put in a string as the type of l, which is syntactically allowed, but it is not good for parsing programmatically (which we'll come back to later). It is important to note that Python won't raise a TypeError if you pass a float into ...
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Python - List of unique dictionaries

...list({str(i):i for i in L}.values()) Here we use str(i) to create a unique string that represents the dictionary which is used to filter the duplicates. – DelboyJay Jul 19 '19 at 14:43 ...