Discover-news Scraper

* Returns any queue entries that have not yet been reported to the* callback and clears the queue. This can be used in conjunction with the* callback to obtain the absolute most up-to-date intersection information.* @return {Array} The currently queued entries.IntersectionObserver.prototype.takeRecords = function() {var records = this._queuedEntries.slice();* Accepts the threshold value from the user configuration object and* returns a sorted array of unique threshold values. If a value is not* between 0 and 1 and error is thrown.* @param {Array|number=} opt_threshold An optional threshold value or* a list of threshold values, defaulting to [0].* @return {Array} A sorted list of unique and valid threshold values.IntersectionObserver.prototype._initThresholds = function(opt_threshold) {var threshold = opt_thresholdif (!Array.isArray(threshold)) threshold = [threshold];return threshold.sort().filter(function(t, i, a) {throw new Error('threshold must be a number between 0 and 1 inclusively');* Accepts the rootMargin value from the user configuration object* and returns an array of the four margin values as an object containing* the value and unit properties. If any of the values are not properly* formatted or use a unit other than px or %, and error is thrown.* @param {string=} opt_rootMargin An optional rootMargin value,* @return {Array<Object>} An array of margin objects with the keysIntersectionObserver.prototype._parseRootMargin = function(opt_rootMargin) {var marginString = opt_rootMarginvar margins = marginString.split(/\s+/).map(function(margin) {throw new Error('rootMargin must be specified in pixels or percent');return {value: parseFloat(parts[1]), unit: parts[2]};* Starts polling for intersection changes if the polling is not already* happening, and if the page's visibility state is visible.IntersectionObserver.prototype._monitorIntersections = function() {