René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"Code","url":"https://leetcodejavascript.com/solutions/peeking-iterator","name":"#284 - Peeking Iterator - LeetCode JavaScript Solutions","description":"Design an iterator that supports the peek operation on an existing iterator in addition to the hasNext and the next operations. Implement th...","programmingLanguage":"JavaScript","codeRepository":"https://github.com/JoshCrozier/leetcode-javascript","codeSampleType":"JavaScript","text":"/**\n * @param {Iterator} iterator\n */\nvar PeekingIterator = function(iterator) {\n this.iterator = iterator;\n this.peekValue = iterator.next();\n};\n\n/**\n * @return {number}\n */\nPeekingIterator.prototype.peek = function() {\n return this.peekValue;\n};\n\n/**\n * @return {number}\n */\nPeekingIterator.prototype.next = function() {\n const next = this.peekValue;\n this.peekValue = this.iterator.next();\n return next;\n};\n\n/**\n * @return {boolean}\n */\nPeekingIterator.prototype.hasNext = function() {\n return this.peekValue > 0;\n};","keywords":"LeetCode 284, #284 - Peeking Iterator, Medium, JavaScript solution","learningResourceType":"Code","isAccessibleForFree":true,"educationalLevel":"intermediate","interactivityType":"mixed"}