* Escape text for attribute or text content.

* @param {HTMLElement} elem * @param {string} type * @param {Function} fn

* @param {Array|NodeList} elems * @param {string} type * @param {Function} fn

* Does a substring of shorttext exist within longtext such that the substring * is at least half the length of longtext? * Closure, but does

* Split a text into an array of strings. Reduce the texts to a string of * hashes where each Unicode character represents one line. * Modif