first commit

Author: jongrover

README.md

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+# Procedural Task List In Many Languages
+
+## About
+
+A task list application written in different languages with the purpose of comparing and contrasting them. It highlights very basic and high use statements in each language such as global and local variables, if else conditional statements, and while loops. It demonstrates how each language deals with: sending messages and gathering input from users, how to convert between strings and integers, define and call functions. I will continue to add more languages as I learn them... or submit them yourself through a pull request.
+
+## Demos
+
+1. JavaScript: open [index.html](index.html) in a browser.
+2. Python: from Terminal type $ `python task-list.py`.
+3. Ruby: from Terminal type $ `ruby task-list.rb`.
+
+## Contributing
+
+1. Fork me.
+2. Clone me.
+3. Submit a pull request.
+
+## License
+
+Copyright © 2016 Jonathan Grover, Purple Rabbit LLC, Code Pajamas
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

index.html

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+<script src="task-list.js"></script>

task-list.js

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+var exit = false,
+    tasks = [];
+
+function display_tasks() {
+  var num_tasks = tasks.length,
+      response = "----------\n";
+  for(i=0; i < num_tasks; i++) {
+    response += (i+1) + ".) " + tasks[i] + "\n";
+  }
+  response += "\n----------";
+  alert(response);
+}
+
+function add_task() {
+  var task = prompt("Type a new task:");
+  tasks.push(task);
+  display_tasks();
+}
+
+function remove_task() {
+  display_tasks();
+  var index = parseInt(prompt("Type task number to remove:")) - 1;
+  tasks.splice(index, 1);
+  display_tasks();
+}
+
+while (exit === false) {
+  var choice = parseInt(prompt("Please enter a number from the following choices: 1. Insert a new task, 2. Remove a task, 3. List all tasks, 4. exit this program"));
+  if (choice === 1) {
+    add_task();
+  }
+  else if (choice === 2) {
+    remove_task();
+  }
+  else if (choice === 3) {
+    display_tasks();
+  }
+  else if (choice === 4) {
+    alert("Exiting...");
+    exit = true;
+    window.close();
+  }
+  else {
+    alert("sorry didn't recognize that input");
+  }
+}

task-list.py

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+exit = False
+tasks = []
+
+def display_tasks():
+    num_tasks = len(tasks)
+    i = 0
+    print "----------"
+    while (i < num_tasks):
+        print str(i+1) + ".) " + tasks[i]
+        i += 1
+    print "----------"
+
+def add_task():
+    print "Type a new task:"
+    task = raw_input()
+    tasks.append(task)
+    display_tasks()
+
+def remove_task():
+    display_tasks()
+    print "Type task number to remove:"
+    index = int(raw_input()) - 1
+    tasks.pop(index)
+    display_tasks()
+
+while (exit == False):
+    print "Please enter a number from the following choices: 1. Insert a new task, 2. Remove a task, 3. List all tasks, 4. exit this program"
+    choice = int(raw_input())
+    if (choice == 1):
+        add_task()
+    elif (choice == 2):
+        remove_task()
+    elif (choice == 3):
+        display_tasks()
+    elif (choice == 4):
+        print "Exiting..."
+        exit = True
+    else:
+        print "sorry didn't recognize that input"

task-list.rb

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+@exit = false
+@tasks = []
+
+def display_tasks
+  num_tasks = @tasks.length
+  i = 0
+  puts "----------"
+  while i < num_tasks do
+    puts "#{i+1}.) #{@tasks[i]}"
+    i += 1
+  end
+  puts "----------"
+end
+
+def add_task
+  puts "Type a new task:"
+  task = gets.chomp
+  @tasks.push task
+  display_tasks
+end
+
+def remove_task
+  display_tasks
+  puts "Type task number to remove:"
+  index = gets.chomp.to_i - 1
+  @tasks.delete_at index
+  display_tasks
+end
+
+while @exit == false do
+  puts "Please enter a number from the following choices: 1. Insert a new task, 2. Remove a task, 3. List all tasks, 4. exit this program"
+  choice = gets.chomp.to_i
+  if choice == 1
+    add_task
+  elsif choice == 2
+    remove_task
+  elsif choice == 3
+    display_tasks
+  elsif choice == 4
+    puts "Exiting..."
+    @exit = true
+  else
+    puts "sorry didn't recognize that input"
+  end
+end