aurelia-templating/src/util.js

An extensible HTML templating engine supporting databinding, custom elements, attached behaviors and more.

const capitalMatcher = /([A-Z])/g;

function addHyphenAndLower(char) {
  return '-' + char.toLowerCase();
}

export function _hyphenate(name) {
  return (name.charAt(0).toLowerCase() + name.slice(1)).replace(capitalMatcher, addHyphenAndLower);
}

//https://developer.mozilla.org/en-US/docs/Web/API/Document_Object_Model/Whitespace_in_the_DOM
//We need to ignore whitespace so we don't mess up fallback rendering
//However, we cannot ignore empty text nodes that container interpolations.
export function _isAllWhitespace(node) {
  // Use ECMA-262 Edition 3 String and RegExp features
  return !(node.auInterpolationTarget || (/[^\t\n\r ]/.test(node.textContent)));
}