html-template-utils

A small library that exports some utility functions for working with HTML and the DOM (server and/or client)

install/usage

npm install html-template-utils

const { isBrowser, isEditing, $j, css, Grow, render } = require('html-template-utils') 

client only

---

isEditing

Determines if the client is focused in a text area or contenteditable.

Also returns true if the current focused element has class ".EDITOR"

$j(document).on('keydown', e => {
   if(isEditing()) return 
   //handle some keydown now that we know user is not typing
})

$j

jQuery with an extended property available on any query called .el ( shorthand for $j('#mydiv')[0] )

const vanillaElem = $j('#mydiv').el 
const jQueryElem =  $j('#mydiv')

client or server

---

isBrowser

Check if you are in NodeJS or browser; ie- so you can do browser specific stuff or prevent some NodeJS stuff from running in browser.

if(isBrowser()) doBrowserSpecificStuff()

css

Function for concatenating css. You can concatenate space delimited strings, comma delimited strings, variables, or any combination thereof.

const specialblue = 'text-blue-500/50' 
const boldRed = 'text-red-500 font-bold' 

return `
  <div class=${ css( specialBlue, boldRed, 
    'underline italic, 'my-4') }> 
    hello world 
  </div> 
`

Grow

template/shorthand for a Tailwind grow span ie- to fill a gap

<div id="header" class="flex items-center"> 
   <img src="logo.png" /> 
   ${Grow}
   <a href="/contact">Contact</a>
</div> 

render

Returns a DOM-ready string from a vanilla template literal.

This is an optional pre-DOM insertion/replacement step you can run on template literals to enable quoteless attributes and self closing tags.

Similar to uhtml-ssr render function, except no special html tag literal is required.

const template = `<div id=${myId} class=${myDynamicClass()} />`
document.body.innerHTML = render(template)
//if you didn't call render, the attributes would be missing "" and thus
//be incorrectly parsed by the DOM; the div would also not close

If rendered in browser there is some early/experimental DOM state management in an effort to preserve form fields, etc

The render function was originally a direct export from uhtml-ssr's render function but I wanted a simpler function that did not enforce opinion on 'unsafe HTML' and that could be used interchangeably with any string ie- no special tag required.