komalsdg · December 3, 2021 09:47
diff --git a/Javascript: Inventory List b/Javascript: Inventory List
 /*
 #Task is to implement a function inventoryList such that:

 #- it maintains the collection of all item names existing in an inventory, where each item is uniquely identified by a name.
 #- returns a new object, with three methods:
 #    - add(name): the string name parameter is passed, and it is added to the collection. It is guaranteed that at any time, if an item is in  the collection, then no longer item with the same name will be added to the collection.
 #    - remove(name): the string name parameter is passed, and this item is removed from the collection if it exists. If it does not exist, nothing happens.
 #   - getList(): this returns an array of names of items added so far. The names are returned in the order the corresponding items were added.

 #    Sample Case(s):

 #    1) Input                Output

 #        5                   Pineapple,Apple
 #        add Pineapple       Apple
 #        add Apple
 #        getList
 #        remove Pineapple
 #        getList

 #    2) Input                Output

 #        3                   Pineapple
 #        add Pineapple
 #        remove Apple
 #        getList

 function inventoryList() {
    
      var items = [];
      function add(item) {
          if (item !== null){
            const index = items.indexOf(item);
            if (index === -1){
                items.push(item);
            }
          }   
      }
      function remove(item) {  
          const index = items.indexOf(item);
          if (index > -1) {
              items.splice(index, 1);
          }
      }
      function getList() {
          if (items){
             return items;
          } else {
             return null; 
          }
      }
      
      return {
          add: add,
          getList: getList,
          remove: remove
      };
  }

  function main() {
    
    const obj = inventoryList();
    const operationCount = 3;
    
    let inputData = ['add Pineapple', 'remove Apple', 'getList'];

    for(let k=1; k<= operationCount; k++)
    {
        for(let i = 0; i < inputData.length; i++) {
            const operationInfo = inputData[i].trim().split(' ');
            if (operationInfo[0] === 'add') {
                obj.add(operationInfo[1]);
            } else if (operationInfo[0] === 'remove') {
                obj.remove(operationInfo[1]);
            } else if (operationInfo[0] === 'getList') {
                const res = obj.getList();
                if (res.length === 0) {
                console.log('No Items\n');
                } else {
                    console.log(`${res.join(',')}\n`);
                }
            }
        }
    }
 }

 main();
	/*
	#Task is to implement a function inventoryList such that:

	#- it maintains the collection of all item names existing in an inventory, where each item is uniquely identified by a name.
	#- returns a new object, with three methods:
	# - add(name): the string name parameter is passed, and it is added to the collection. It is guaranteed that at any time, if an item is in the collection, then no longer item with the same name will be added to the collection.
	# - remove(name): the string name parameter is passed, and this item is removed from the collection if it exists. If it does not exist, nothing happens.
	# - getList(): this returns an array of names of items added so far. The names are returned in the order the corresponding items were added.

	# Sample Case(s):

	# 1) Input Output

	# 5 Pineapple,Apple
	# add Pineapple Apple
	# add Apple
	# getList
	# remove Pineapple
	# getList

	# 2) Input Output

	# 3 Pineapple
	# add Pineapple
	# remove Apple
	# getList

	function inventoryList() {

	var items = [];
	function add(item) {
	if (item !== null){
	const index = items.indexOf(item);
	if (index === -1){
	items.push(item);
	}
	}
	}
	function remove(item) {
	const index = items.indexOf(item);
	if (index > -1) {
	items.splice(index, 1);
	}
	}
	function getList() {
	if (items){
	return items;
	} else {
	return null;
	}
	}

	return {
	add: add,
	getList: getList,
	remove: remove
	};
	}

	function main() {

	const obj = inventoryList();
	const operationCount = 3;

	let inputData = ['add Pineapple', 'remove Apple', 'getList'];

	for(let k=1; k<= operationCount; k++)
	{
	for(let i = 0; i < inputData.length; i++) {
	const operationInfo = inputData[i].trim().split(' ');
	if (operationInfo[0] === 'add') {
	obj.add(operationInfo[1]);
	} else if (operationInfo[0] === 'remove') {
	obj.remove(operationInfo[1]);
	} else if (operationInfo[0] === 'getList') {
	const res = obj.getList();
	if (res.length === 0) {
	console.log('No Items\n');
	} else {
	console.log(`${res.join(',')}\n`);
	}
	}
	}
	}
	}

	main();