Live Indicator Wrapper for `trading-signals` (requires `deepclone`)

Indicator.js

import clone from 'deepclone';
import * as signals from 'trading-signals';
export class Indicator {
    constructor(indicator) {
        this.values = [];
        this.indicator = indicator;
    }
    update(v) {
        this.last = clone(this.indicator);
        const value = this.indicator.update(v);
        this.values.push(value);
        return value;
    }
    replace(v) {
        const head = clone(this.last);
        const value = head.update(v);
        this.values.splice(this.values.length - 1, 1, value);
        return value;
    }
    get value() {
        return this.values[this.values.length - 1];
    }
    static mk(indicator, args) {
        const i = new signals[indicator](...args);
        return new Indicator(i);
    }
}