ts-sum-types/dist/variant.js

Algebraic sum types for TypeScript, designed after Rust's enums

export class VariantClass {
    constructor(tag, value) {
        this.tag = tag;
        this.value = value;
    }
    match(fns) {
        fns[this.tag](...this.value);
    }
}
export function Variant(tag, value) {
    return new VariantClass(tag, value);
}