ts_linq_base

Linq methods for Array in Typescript

Installation

``bash
npm install ts_linq_base
`

Usage

In your entrypoint file, use:

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`typescript
// Sample arrays
let stringArray = ["adriano", "marino", "balera", "camila", "juliana", "andre"];
let numberArray = [1, 5, 3, 7, 9, 3, 6];
let dateArray = [new Date('2023-01-01'), new Date('2025-01-01'), new Date('2021-01-01')];
let objectArray = [
new Person("adriano", 950, Gender.MALE),
new Person("camila", 25, Gender.FEMALE),
new Person("juliana", 30, Gender.FEMALE),
new Person("andre", 30, Gender.MALE)
];
`

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`typescript
stringArray.Where(s => s.startsWith("a")); // ["adriano", "andre"]
objectArray.Where(s => s.Name.startsWith("a")); // [Person("adriano",950,MALE), Person("andre",30,MALE)]
numberArray.Where(s => s > 2); // [5,3,7,9,3,6]
dateArray.Where(s => s > new Date("2022-01-01")); // [2023-01-01, 2025-01-01]
`

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`typescript
objectArray.Count(); // 4
numberArray.Count(s => s > 2); // 5
`

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`typescript
stringArray.Any(); // true
stringArray.Any(s => s.startsWith("a")); // true
`

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`typescript
stringArray.All(s => s.startsWith("a")); // false
`

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`typescript
stringArray.FirstOrDefault(); // "adriano"
stringArray.FirstOrDefault(s => s == "camila"); // "camila"
`

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`typescript
numberArray.First(); // 1
numberArray.First(s => s > 5); // 7
`

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`typescript
numberArray.Last(); // 6
numberArray.Last(s => s < 5); // 3
`

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`typescript
stringArray.OrderBy(); // ["adriano","andre","balera","camila","juliana","marino"]
objectArray.OrderBy(p => p.Name); // [adriano, andre, camila, juliana]
objectArray.OrderByDescending(p => p.Name); // [juliana, camila, andre, adriano]
`

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`typescript
objectArray.GroupBy(u => u.Gender);
// MALE: [adriano, andre]
// FEMALE: [camila, juliana]
`

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`typescript
numberArray.Aggregate(); // 34
`

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`typescript
numberArray.Select(s => s ** 2); // [1,25,9,49,81,9,36]
objectArray.Select(s => s.Age); // [950,25,30,30]
numberArray.Select(s => new Person("Adriano", s, Gender.MALE)); // [Person(1), Person(5), Person(3), ...]
`

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`typescript
objectArray.SelectMany(s => s.DOCs); // concatena todos os arrays DOCs em um único array
`

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`typescript
numberArray.Skip(3); // [7,9,3,6]
`

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`typescript
numberArray.Take(3); // [1,5,3]
`

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`typescript
[1,2,3,4,5].Sum(); // 15
objectArray.Sum(s => s.Age); // 1035
`

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`typescript
[1,2,3,4,5].Max(); // 5
objectArray.Max(s => s.Age); // 950
`

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`typescript
[1,2,3,4,5].Min(); // 1
objectArray.Min(s => s.Age); // 25
`

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`typescript
[1,2,3,4,5].Avg(); // 3
objectArray.Avg(s => s.Age); // 258.75
`

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`typescript
[1,2,2,3,4,5,5].Distinct(); // [1,2,3,4,5]
``

Contributing

Pull requests are welcome. For major changes, please open an issue first
to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT