All components · Category: Content and utilities

Unit converter

Length, mass, temperature and volume, in the visitor's own language.

Converts as you type, with the number and the unit names written in the visitor's language, and both the comma and the dot work as the decimal mark. Nothing is stored or sent.

Try it

<unit-converter>

ViewPreviewCodeCSS

unit-converter: Length, mass, temperature and volume, in the visitor's own language. 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.

index.html

<unit-converter locale="en"></unit-converter>

<script>
  const element = document.querySelector("unit-converter");
  element.addEventListener("unit-converter:converted", (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("unit-converter");
element.setAttribute("locale", "en");
element.addEventListener("unit-converter:converted", (event) => {
  console.log(event.detail);
});
document.body.append(element);

Add the site's Taggor script once; the component appears when it loads.

UnitConverter.tsx

import { useEffect, useRef } from "react";

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

  useEffect(() => {
    const element = ref.current;
    if (!element) return;
    const onConverted = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("unit-converter:converted", onConverted);
    return () => {
      element.removeEventListener("unit-converter:converted", onConverted);
    };
  }, []);

  return <unit-converter 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.

UnitConverter.tsx

import { useEffect, useRef } from "react";

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

  useEffect(() => {
    const element = ref.current;
    if (!element) return;
    const onConverted = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    element.addEventListener("unit-converter:converted", onConverted);
    return () => {
      element.removeEventListener("unit-converter:converted", onConverted);
    };
  }, []);

  return <unit-converter 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/UnitConverter.vue

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

<template>
  <unit-converter locale="en" @unit-converter:converted="onConverted" />
</template>

vite.config.ts

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

export default defineConfig({
  plugins: [
    vue({
      template: {
        compilerOptions: {
          isCustomElement: (tag) => tag === "unit-converter",
        },
      },
    }),
  ],
});

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/unit-converter.component.ts

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

@Component({
  selector: "app-unit-converter",
  schemas: [CUSTOM_ELEMENTS_SCHEMA],
  template: `
    <unit-converter locale="en"></unit-converter>
  `,
})
export class UnitConverterComponent {
  constructor() {
    const host = inject<ElementRef<HTMLElement>>(ElementRef);
    const element = () => host.nativeElement.querySelector("unit-converter");
    const onConverted = (event: Event) => {
      console.log((event as CustomEvent).detail);
    };
    afterNextRender(() => element()?.addEventListener("unit-converter:converted", onConverted));
    inject(DestroyRef).onDestroy(() => element()?.removeEventListener("unit-converter:converted", onConverted));
  }
}

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

<unit-converter locale="en" onunit-converter:converted={onConverted}></unit-converter>

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

unit-converter {
  --uc-radius: 16px;
}

Props

Props of the component, read from its manifest
Prop	Type	Default	What it does
category	length \| mass \| temperature \| volume	length	What it converts first.
amount	number	10	The starting amount.
locale	pt-BR \| en	en	–

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

Events

Events of the component, read from its manifest
Event	When it fires
converted	The visitor changed the amount or a unit.

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 "Unit converter" (unit-converter): Length, mass, temperature and volume, in the visitor's own language. 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.

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