Taggor

All components · Category: Calculators

Return calculator

Work out what a change could return, with a chart and a table.

Visitors, conversion and order value go in, a projected return comes out, drawn as a chart with a text alternative and a table. The assumptions are a prop.

01

Try it

<roi-calculator>
View

Props

Accent
Corners
roi-calculator: Work out what a change could return, with a chart and a table. A picture of the real component, drawn from its own code. The controls change the picture and the code beside it; nothing here is sent or stored.

Generated from the component's manifest and the values above.

Code for

index.html

<roi-calculator locale="en"></roi-calculator>

<script>
  const element = document.querySelector("roi-calculator");
  element.addEventListener("roi-calculator:change", (event) => {
    console.log(event.detail);
  });
  element.addEventListener("roi-calculator:reset", (event) => {
    console.log(event.detail);
  });
</script>
  • Add the site's Taggor script once; the component appears when it loads.

taggor-component.js

const element = document.createElement("roi-calculator");
element.setAttribute("locale", "en");
element.addEventListener("roi-calculator:change", (event) => {
  console.log(event.detail);
});
element.addEventListener("roi-calculator:reset", (event) => {
  console.log(event.detail);
});
document.body.append(element);
  • Add the site's Taggor script once; the component appears when it loads.

RoiCalculator.tsx

import { useEffect, useRef } from "react";

export function RoiCalculator() {
  const ref = useRef<HTMLElement>(null);

  useEffect(() => {
    const element = ref.current;
    if (!element) return;
    const onChange = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("roi-calculator:change", onChange);
    const onReset = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("roi-calculator:reset", onReset);
    return () => {
      element.removeEventListener("roi-calculator:change", onChange);
      element.removeEventListener("roi-calculator:reset", onReset);
    };
  }, []);

  return <roi-calculator ref={ref} locale="en" />;
}
  • Add the site's Taggor script once; the component appears when it loads.
  • React 18 sends every prop of a custom element as a text attribute.
  • The event is heard with addEventListener, inside an effect.

RoiCalculator.tsx

import { useEffect, useRef } from "react";

export function RoiCalculator() {
  const ref = useRef<HTMLElement>(null);

  useEffect(() => {
    const element = ref.current;
    if (!element) return;
    const onChange = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("roi-calculator:change", onChange);
    const onReset = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("roi-calculator:reset", onReset);
    return () => {
      element.removeEventListener("roi-calculator:change", onChange);
      element.removeEventListener("roi-calculator:reset", onReset);
    };
  }, []);

  return <roi-calculator ref={ref} locale="en" />;
}
  • Add the site's Taggor script once; the component appears when it loads.
  • React 19 sets a property when the element already has it, an attribute otherwise.
  • The event is heard with addEventListener, inside an effect.

src/RoiCalculator.vue

<script setup lang="ts">
function onChange(event: Event) {
  console.log((event as CustomEvent).detail);
}

function onReset(event: Event) {
  console.log((event as CustomEvent).detail);
}
</script>

<template>
  <roi-calculator
    locale="en"
    @roi-calculator:change="onChange"
    @roi-calculator:reset="onReset"
  />
</template>

vite.config.ts

import vue from "@vitejs/plugin-vue";
import { defineConfig } from "vite";

export default defineConfig({
  plugins: [
    vue({
      template: {
        compilerOptions: {
          isCustomElement: (tag) => tag === "roi-calculator",
        },
      },
    }),
  ],
});
  • Add the site's Taggor script once; the component appears when it loads.
  • vite.config.ts tells Vue that this tag is not a Vue component.

src/app/roi-calculator.component.ts

import { afterNextRender, Component, CUSTOM_ELEMENTS_SCHEMA, DestroyRef, ElementRef, inject } from "@angular/core";

@Component({
  selector: "app-roi-calculator",
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  template: `
    <roi-calculator locale="en"></roi-calculator>
  `,
})
export class RoiCalculatorComponent {
  constructor() {
    const host = inject<ElementRef<HTMLElement>>(ElementRef);
    const element = () => host.nativeElement.querySelector("roi-calculator");
    const onChange = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    afterNextRender(() => element()?.addEventListener("roi-calculator:change", onChange));
    inject(DestroyRef).onDestroy(() => element()?.removeEventListener("roi-calculator:change", onChange));
    const onReset = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    afterNextRender(() => element()?.addEventListener("roi-calculator:reset", onReset));
    inject(DestroyRef).onDestroy(() => element()?.removeEventListener("roi-calculator:reset", onReset));
  }
}
  • Add the site's Taggor script once; the component appears when it loads.
  • The component declares CUSTOM_ELEMENTS_SCHEMA.
  • The event is heard with addEventListener, inside an effect.

src/TaggorComponent.svelte

<script>
  function onChange(event) {
    console.log(event.detail);
  }

  function onReset(event) {
    console.log(event.detail);
  }
</script>

<roi-calculator
  locale="en"
  onroi-calculator:change={onChange}
  onroi-calculator:reset={onReset}
></roi-calculator>
  • Add the site's Taggor script once; the component appears when it loads.

How an agent gets a component like this onto a site:

taggor checktaggor publish

The CSS variables the component exposes, set the way a customer's page would.

styles.css

roi-calculator {
  --roi-radius: 12px;
}

02

Props

Props of the component, read from its manifest
PropTypeDefaultWhat it does
headlinestringnoneReplaces the default heading.
visitorsnumber 0 to 1000000020000Visitors per month.
conversionPercentnumber 0 to 1002Share of visitors who buy, in percent.
orderValuenumber 0 to 100000060Average value of an order.
monthsnumber 1 to 3612The horizon, in months.
assumptionsobject{"upliftPercent":15,"rampMonths":3,"setupCost":…The assumptions of the model; none of them is a measured result.
currencyUSD | EUR | BRLUSD–
chartline | barslineThe cumulative line or the monthly bars.
showTablebooleanfalseOpens the data table under the chart.
accentcolornoneAccent color; wins over the --roi-accent variable.
localept-BR | enen–

Prop names and descriptions are the component's own, in English, as its author wrote them.

03

Events

Events of the component, read from its manifest
EventWhen it fires
changeThe visitor moved a slider; the numbers are the new result.
resetThe visitor put the numbers back to the site's values.

04

Build one with your agent

Paste this into your agent. It asks you before it signs in, pays or goes further than checking and publishing.

Build me a Taggor component like "Return calculator" (roi-calculator): Work out what a change could return, with a chart and a table. Fetch https://taggor.dev/agent-setup/prompt.md and follow its instructions to set me up for Taggor. Ask me before you sign in, create an account, accept terms, pay for anything or type a secret. Check it with `taggor check` and publish it with `taggor publish`, and stop there. Do not promote it to production, attach it to a site, roll back anything or use --yes, --force or --force-drop-invalid unless I ask for exactly that in this conversation.

05

Related components

Documentation