Function dom

src/scripts/highlighting/textHighlighter.js:189–414

(el)

     * @returns {object}
     */
    var dom = function (el) {

        return /** @lends dom **/ {

            /**
             * Adds class to element.
             * @param {string} className
             */
            addClass: function (className) {
                if (el.classList) {
                    el.classList.add(className);
                } else {
                    el.className += ' ' + className;
                }
            },

            /**
             * Removes class from element.
             * @param {string} className
             */
            removeClass: function (className) {
                if (el.classList) {
                    el.classList.remove(className);
                } else {
                    el.className = el.className.replace(
                        new RegExp('(^|\\b)' + className + '(\\b|$)', 'gi'), ' '
                    );
                }
            },

            /**
             * Prepends child nodes to base element.
             * @param {Node[]} nodesToPrepend
             */
            prepend: function (nodesToPrepend) {
                var nodes = Array.prototype.slice.call(nodesToPrepend),
                    i = nodes.length;

                while (i--) {
                    el.insertBefore(nodes[i], el.firstChild);
                }
            },

            /**
             * Appends child nodes to base element.
             * @param {Node[]} nodesToAppend
             */
            append: function (nodesToAppend) {
                var nodes = Array.prototype.slice.call(nodesToAppend);

                for (var i = 0, len = nodes.length; i < len; ++i) {
                    el.appendChild(nodes[i]);
                }
            },

            /**
             * Inserts base element after refEl.
             * @param {Node} refEl - node after which base element will be inserted