A list of additional practices with challenges that vary greatly in difficulty. Most important in all of these is attempt to get the right answer without worrying as much about how you get the right answer. The focus should be to be able to solve these problems in code, despite what functions or methods you use.

Core concepts:

• Conditionals
• Callback functions
• Iteration, Loops
• Map, Filter, Find

Write your code in index.js. You can see the console.log() output by using node index.js in the terminal from this directory.

The dataset for this practice can be found in nyc-ufo-sightings.json. It is an array of UFO sightings in the state of New York. Each object has three properties: shape, duration, and comments.

{
    "shape": "light",
    "duration": 60,
    "comments": "((POSSIBLE HOAX??)) 2 balls of light in sky no sound military chasing it."
}

• shape: The shape of the UFO
• duration: How long the UFO could be seen for in seconds.
• comments: A comment from the person who recorded the sighting.

• Write a function called calculateMinutes that takes in an argument called seconds and returns how many minutes it is equal to, rounding down.

• Write a function called getRandomSighting that returns a random ufo sighting object from the UFO_SIGHTINGS dataset. If you need help or a hint, click here.

• Write a function called getRandomSightings that takes a number as an argument and returns an array with that many random sightings.

• Write a function called getLongestSighting that takes in an array of ufo sightings and returns the longest one.

• Write a function called getComment that takes in a ufo sighting object as an argument and returns the comment as a string.

• Write a function called getFirstWordInComment that takes a ufo sighting object as an argument and returns the first word in the commnent.

• Write a function called shapeTypes that returns an array of all the different shapes that are present in the UFO_SIGHTINGS. There should only be one copy of each shape in the returned array (no duplicates).

• Write a function called calculateViewDuration that takes in a ufo sighting object and returns the string "Short" if the object's duration is under 120, "Average" if the time is between 120 and 240, and "Long" if the time is greater than 240.

• Write a function that calculates the average duration of all sighting objects in UFO_SIGHTINGS.

• Write a function that returns the first ufo sighting in UFO_SIGHTINGS that's over 10 minutes long.

• Write a function that returns an array of all the comments from ufo sightings that were less than one minute.