react-native-drawing/lib/dist/shared/utils/SymbolParser/DoubleMap.js

A React Native library that provides a canvas to perform drawing actions

export class DoubleMap {
    constructor() {
        Object.defineProperty(this, "index", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: new Map()
        });
    }
    set(a, b) {
        this.index.set(a, b);
        this.index.set(b, a);
    }
    get(key) {
        return this.index.get(key);
    }
    delete(key) {
        return this.index.delete(key);
    }
}