##Objective:
- Apply your knowledge of JavaScript to solve a problem we've already tackled in Ruby.
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Create a program that models a simple subway system.
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The program takes the line and stop that a user is getting on at and the line and stop that user is getting off at and prints the total number of stops for the trip.
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There are 3 subway lines:
- The N line has the following stops: Times Square, 34th, 28th, 23rd, Union Square, and 8th
- The L line has the following stops: 8th, 6th, Union Square, 3rd, and 1st
- The 6 line has the following stops: Grand Central, 33rd, 28th, 23rd, Union Square, and Astor Place.
- All 3 subway lines intersect at Union Square, but there are no other intersection points. (For example, this means the 28th stop on the N line is different than the 28th street stop on the 6 line, so you'll have to differentiate this when you name your stops in the arrays.)
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Tell the user the number of stops AND the stops IN ORDER that they will pass through or change at.
- Get the program to work for a single line before trying to tackle multiple lines.
- Don't worry about user input. Start off by just hardcoding your stop and line choices in local variables.
- If you want to add user input, use prompt('Some prompt') to read from the user.
- Remember, you've done this in Ruby before. Look at your code and figure out how to do it in JavaScript.
- Consider diagraming the lines by sketching out the subway lines and their stops and intersection.
- Make subway lines keys in a hash, while the values are an array of all the stops on each line.
- The key to the lab is finding the index positions of each stop.
- Make sure the stops that are the same for different lines have different names (i.e. 23rd on the N and on the 6 need to be differentiated)