diff --git a/06week/checkpoint2.js b/06week/checkpoint2.js new file mode 100644 index 000000000..ca0b189d0 --- /dev/null +++ b/06week/checkpoint2.js @@ -0,0 +1,99 @@ +'use strict'; + +const strNums = ["1","4","1","5","9","2","6","5","3","5","8","9","7","9","3","2","3","8","4","6","2","6","4","3","3","8","3","2","7","9","5","0","2","8","8","4","1","9","7","1","6","9","3","9","9","3","7","5","1","0","5","8","2","0","9","7","4","9","4","4","5","9","2","3","0","7","8","1","6","4","0","6","2","8","6","2","0","8","9","9","8","6","2","8","0","3","4","8","2","5","3","4","2","1","1","7","0","6","7","9","8","2","1","4","8","0","8","6","5","1","3","2","8","2","3","0","6","6","4","7","0","9","3","8","4","4","6","0","9","5","5","0","5","8","2","2","3","1","7","2","5","3","5","9","4","0","8","1","2","8","4","8","1","1","1","7","4","5","0","2","8","4","1","0","2","7","0","1","9","3","8","5","2","1","1","0","5","5","5","9","6","4","4","6","2","2","9","4","8","9","5","4","9","3","0","3","8","1","9","6","4","4","2","8","8","1","0","9","7","5","6","6","5","9","3","3","4","4","6","1","2","8","4","7","5","6","4","8","2","3","3","7","8","6","7","8","3","1","6","5","2","7","1","2","0","1","9","0","9","1","4","5","6","4","8","5","6","6","9","2","3","4","6","0","3","4","8","6","1","0","4","5","4","3","2","6","6","4","8","2","1","3","3","9","3","6","0","7","2","6","0","2","4","9","1","4","1","2","7","3","7","2","4","5","8","7","0","0","6","6","0","6","3","1","5","5","8","8","1","7","4","8","8","1","5","2","0","9","2","0","9","6","2","8","2","9","2","5","4","0","9","1","7","1","5","3","6","4","3","6","7","8","9","2","5","9","0","3","6","0","0","1","1","3","3","0","5","3","0","5","4","8","8","2","0","4","6","6","5","2","1","3","8","4","1","4","6","9","5","1","9","4","1","5","1","1","6","0","9","4","3","3","0","5","7","2","7","0","3","6","5","7","5","9","5","9","1","9","5","3","0","9","2","1","8","6","1","1","7","3","8","1","9","3","2","6","1","1","7","9","3","1","0","5","1","1","8","5","4","8","0","7","4","4","6","2","3","7","9","9","6","2","7","4","9","5","6","7","3","5","1","8","8","5","7","5","2","7","2","4","8","9","1","2","2","7","9","3","8","1","8","3","0","1","1","9","4","9","1","2","9","8","3","3","6","7","3","3","6","2","4","4","0","6","5","6","6","4","3","0","8","6","0","2","1","3","9","4","9","4","6","3","9","5","2","2","4","7","3","7","1","9","0","7","0","2","1","7","9","8","6","0","9","4","3","7","0","2","7","7","0","5","3","9","2","1","7","1","7","6","2","9","3","1","7","6","7","5","2","3","8","4","6","7","4","8","1","8","4","6","7","6","6","9","4","0","5","1","3","2","0","0","0","5","6","8","1","2","7","1","4","5","2","6","3","5","6","0","8","2","7","7","8","5","7","7","1","3","4","2","7","5","7","7","8","9","6","0","9","1","7","3","6","3","7","1","7","8","7","2","1","4","6","8","4","4","0","9","0","1","2","2","4","9","5","3","4","3","0","1","4","6","5","4","9","5","8","5","3","7","1","0","5","0","7","9","2","2","7","9","6","8","9","2","5","8","9","2","3","5","4","2","0","1","9","9","5","6","1","1","2","1","2","9","0","2","1","9","6","0","8","6","4","0","3","4","4","1","8","1","5","9","8","1","3","6","2","9","7","7","4","7","7","1","3","0","9","9","6","0","5","1","8","7","0","7","2","1","1","3","4","9","9","9","9","9","9","8","3","7","2","9","7","8","0","4","9","9","5","1","0","5","9","7","3","1","7","3","2","8","1","6","0","9","6","3","1","8","5","9","5","0","2","4","4","5","9","4","5","5","3","4","6","9","0","8","3","0","2","6","4","2","5","2","2","3","0","8","2","5","3","3","4","4","6","8","5","0","3","5","2","6","1","9","3","1","1","8","8","1","7","1","0","1","0","0","0","3","1","3","7","8","3","8","7","5","2","8","8","6","5","8","7","5","3","3","2","0","8","3","8","1","4","2","0","6","1","7","1","7","7","6","6","9","1","4","7","3","0","3","5","9","8","2","5","3","4","9","0","4","2","8","7","5","5","4","6","8","7","3","1","1","5","9","5","6","2","8","6","3","8","8","2","3","5","3","7","8","7","5","9","3","7","5","1","9","5","7","7","8","1","8","5","7","7","8","0","5","3","2","1","7","1","2","2","6","8","0","6","6","1","3","0","0","1","9","2","7","8","7","6","6","1","1","1","9","5","9","0","9","2","1","6","4","2","0","1","9","8","9"]; + +// Given 1000 digits of PI as strings, return an array of the digits as numbers +const nums = strNums.map(num => (Number(num))); +console.log(nums); + +// Find the sum of the even values +const sumEvens = nums + .filter(num => num % 2 === 0) + .reduce((total, num) => total + num); +console.log(sumEvens); + +// Find the index of the first "Austin" value (the value plus its index equals 512) +const atxIdx = nums.findIndex((num, index) => { + return num + index === 512; +}) +console.log(`index: ${atxIdx}, value: ${nums[atxIdx]}`); + +const weather = [ + { id: 5743823523151872, + weather_state_name: "Light Cloud", + weather_state_abbr: "lc", + wind_direction_compass: "NNE", + created: "2018-07-11T20:53:03.251710Z", + applicable_date: "2018-07-11", + min_temp: 14.43, + max_temp: 23.36, + the_temp: 22.785, + wind_speed: 5.682503989556987, + wind_direction: 21.6264939172659, + air_pressure: 1024.45, + humidity: 58, + visibility: 8.683041040324504, + predictability: 70 + }, + { id: 6188149969518592, + weather_state_name: "Heavy Cloud", + weather_state_abbr: "hc", + wind_direction_compass: "NE", + created: "2018-07-11T20:53:03.268190Z", + applicable_date: "2018-07-12", + min_temp: 14.81, + max_temp: 25.52, + the_temp: 24.61, + wind_speed: 3.2461141472739206, + wind_direction: 42.72552812997726, + air_pressure: 1024.605, + humidity: 54, + visibility: 10.633835898353615, + predictability: 71 + }, + { id: 5742049676492800, + weather_state_name: "Showers", + weather_state_abbr: "s", + wind_direction_compass: "E", + created: "2018-07-11T20:53:03.947390Z", + applicable_date: "2018-07-13", + min_temp: 15.5525, + max_temp: 25.3475, + the_temp: 24.175, + wind_speed: 3.6572546846814604, + wind_direction: 90.32910675612557, + air_pressure: 1025.385, + humidity: 57, + visibility: 10.181166984808717, + predictability: 73 + }, + { id: 6696130918219776, + weather_state_name: "Heavy Cloud", + weather_state_abbr: "hc", + wind_direction_compass: "SSW", + created: "2018-07-11T20:53:04.068570Z", + applicable_date: "2018-07-14", + min_temp: 15.915, + max_temp: 27.0925, + the_temp: 26.585, + wind_speed: 3.649847972759087, + wind_direction: 200.04283406736377, + air_pressure: 1024.4450000000002, + humidity: 52, + visibility: 11.14056410562316, + predictability: 71 + }, +], + +//using a higher order function, create an array of the unique 'weather_state_name' values of the weather array. Your function should return the following array ['Light Cloud', 'Heavy Cloud', 'Showers'] +const weatherStates = weather.map((state) => { + return state.weather_state_name; +}) +console.log(weatherStates.slice(0, 3)); + +//find the id of the object in weather that has a min_temp of 15.915 + +const idealTemp = weather.find((temp) => { + return temp.min_temp === 15.915; +}) +console.log(idealTemp.id) \ No newline at end of file