document.ts

// A sample document to be used in the Prototype example
import ProtoType from './iprototype'

export default class Document implements ProtoType {
    name: string
    array: [number[], number[]]

    constructor(name: string, array: [number[], number[]]) {
        this.name = name
        this.array = array
    }

    clone(mode: number): Document {
        ' This clone method uses different copy techniques '
        let array
        if (mode === 2) {
            // results in a deep copy of the Document
            array = JSON.parse(JSON.stringify(this.array))
        } else {
            // default, results in a shallow copy of the Document
            array = Object.assign([], this.array)
        }
        return new Document(this.name, array)
    }
}