dry-html

dry-html script use the template element

• avoiding to copy and paste identical portion of HTML,
• changing in one place (the template) any HTML modifications.

see also layout-m for creating flows of template instances.

Example

<!-- declare a template  with a dashed id and placeholders (t-*) -->
// class attribute is transfered to the custom-element
<template id="group-two" class="a-class">
    <label>{t-field}</label>
    <input type="{t-type}" />
</template>
<!--
write the template instance elements
 - based on template id (group-two)
 - with placeholders as attributes (t-field and t-type)
 - with template class attribute if no class is defined
 -->
 <form>
    <group-two
      t-field="Name"
      t-type="text"
    ></group-two>
    <!-- another-class replaces a-class -->
    <group-two
      class="another-class" 
      t-field="Birthday"
      t-type="datetime-local">
    </group-two>
</form>

Rules

• template id must have at least one dash with no leading dash,
• template placeholders t-* can be
  • either any elements attributes (except events),
  • or elements content,
• template attributes or content must contain solely the placeholder
  • ✅<span>${t-label}</span>
  • ❌ : <span>before${t-label}after</span>
• template placeholders must be placed inside HTML elements (attributes or content) not outside
  • ❌: <template>{t-outside}<span>{t-inside}</span></template>
• template instance should be written with respect to HTML standard with closing tags
  • ✅ <my-element></my-element>
  • ❌: <my-element />
• template instance elements have a display:block style,

Installation

Either place a script tag in your HTML file like this (corresponding to src/auto.js)

  <script src="dry-html.js"></script>

This script will detect, once DOMContentLoaded triggered, the dashed-ids templates and do the job with no additional Javascript code.

Or via npm i @titsoft/dry-html with the following exports

import { defineCustomElements, defineCustomElement, getAttributes } from '@titsoft/dry-html'

defineCustomElements() // defines custom-elements for all templates based on their id
defineCustomElement(id) // defines a custom-element for one template id
getAttributes(id) // gives all placeholders/attributes for one template id

Tests

To get the technical scope, see

• test/auto/index.html
• test/module/index.html