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Flatten an Array of Arrays in Swift

...hmiBozdag's answer, 1. Methods in public extensions are public. 2. Removed extra method, as start index will be always zero. 3. I did not find a way to put compactMap inside for nil and optionals because inside method T is always [Any?], any suggestions are welcomed. let array = [[[1, 2, 3], 4], 5...
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Conveniently map between enum and int / String

... int yourEnum.ordinal() int → enum EnumType.values()[someInt] String → enum EnumType.valueOf(yourString) enum → String yourEnum.name() A side-note:As you correctly point out, the ordinal() may be "unstable" from version to version. This is the exact reason why I always stor...
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Splitting a list into N parts of approximately equal length

...43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55] This will assign the extra elements to the final group which is not perfect but well within your specification of "roughly N equal parts" :-) By that, I mean 56 elements would be better as (19,19,18) whereas this gives (18,18,20). You can get th...
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.Contains() on a list of custom class objects

...tProduct : IEquatable<CartProduct> { public Int32 ID; public String Name; public Int32 Number; public Decimal CurrentPrice; public CartProduct(Int32 ID, String Name, Int32 Number, Decimal CurrentPrice) { this.ID = ID; this.Name = Name; this.Numb...
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)

...ent = Android.App.Fragment; namespace Support4 { [Activity (Label = "@string/fragment_pager_support")] [IntentFilter (new[]{Intent.ActionMain}, Categories = new[]{ "mono.support4demo.sample" })] public class FragmentPagerSupport : Activity //public class FragmentPagerSupport : Fragm...
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How to compare a local git branch with its remote branch?

...just missing a little part. Change the line to git diff @ @{upstream}. The extra @ is HEAD, which is where you are now, so you are comparing HEAD with the upstream your branch is tracking. You can use @{push} instead of upstream to get diff between the branch you are set to push to ...
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xcopy file, rename, suppress “Does xxx specify a file name…” message

... The "echo f |" way is cool, but this avoids the extra output that I often search for to find problems in the first place. – Richard Anthony Hein Mar 11 '14 at 22:27 ...
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What is the second parameter of NSLocalizedString()?

... The comment string is ignored by the application. It is used for a translator's benefit, to add meaning to the contextual usage of the key where it is found in your application. For example, the Hello_World_Key key may take different v...
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linq query to return distinct field values from a list of objects

...nd GetHashCode methods. Product class: public class Product { public string ProductName { get; set; } public int Id { get; set; } public override bool Equals(object obj) { if (!(obj is Product)) { return false; } var other = (Product)o...
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Pandas read_csv low_memory and dtype options

...s cannot know it is only numbers, it will probably keep it as the original strings until it has read the whole file. Specifying dtypes (should always be done) adding dtype={'user_id': int} to the pd.read_csv() call will make pandas know when it starts reading the file, that this is only integers. A...