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ts-data-class
Advanced tools
Readme
This package aims to simplify and secure data parsing and manipulation in typescript by providing auto-generated constructors, helper methods, and parsing utilities with minimal boilerplate and full intellisense support.
Every instance of the data class will automatically have:
copy
& copyDeep
parse
& tryParse
equals
npm: npm install ts-data-class
yarn: yarn add ts-data-class
T
that extends DTClass<T>
?:
and required with !:
parsers
getter with a parser for each of the fields (full intellisense support)class Owner extends DTClass<Owner> {
name!: string;
age?: number;
protected get parsers(): DTParsers<Owner> {
return {
name: (v) => Parsers.string(v) ?? "unknown name",
age: (v) => Parsers.number(v) ?? -1,
};
}
}
class Cat extends DTClass<Cat> {
numLives!: number; // required
breed!: string; // required
name?: string; // optional
owner!: Owner; // required
protected get parsers(): DTParsers<Cat> {
return {
numLives: (v) => (typeof v === "number" ? v : 9),
breed: (v) => (typeof v === "string" ? v : "stray"),
name: (v) => (typeof v === "string" ? v : undefined),
owner: (v) => Owner.tryParse(v) ?? Owner.empty(),
};
} // required
}
const cat1 = new Cat({
numLives: 8,
name: "Whiskers",
breed: "Bald",
owner: new Owner({ name: "jack", age: 2 }),
});
console.log(cat1);
/**
Cat {
numLives: 8,
breed: 'Bald',
name: 'Whiskers',
owner: Owner { name: 'jack', age: 2 }
}
*/
const cat2 = cat1.copy({
name: "Kitteh",
breed: undefined,
owner: undefined,
});
console.log(cat2);
/**
Cat {
numLives: 8,
breed: 'stray',
name: 'Kitteh',
owner: Owner { name: 'unknown name', age: -1 }
}
*/
const cat3 = cat2.copy({
breed: "tiger",
owner: cat2.owner.copy({
name: "bobby",
}),
});
console.log(cat3);
/**
Cat {
numLives: 8,
breed: 'tiger',
name: 'Kitteh',
owner: Owner { name: 'bobby', age: -1 }
}
*/
FAQs
Data Classes for Typescript
The npm package ts-data-class receives a total of 116 weekly downloads. As such, ts-data-class popularity was classified as not popular.
We found that ts-data-class demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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