Concept explainers
a.
To addingcalcItemCost() to foodItem prototype, this method returns the priceproperty multiplied by the qty propertyin file rb_build.js.
b.
To add calcCartTotal()to the cart prototype, this method, calculates the cartTotal, by using a loop through the items array, applyingthe calcItemCost() method to each item in the array and storing the sum of the item costs in thetotalCost property in file rb_build.js.
c.
To add addToCart() to the foodItem prototype,this method has a single parameter named cart
andby using the push() array method to add the foodItem object to the items array of the cart.in file rb_build.js.
d)
To add removeFromCart() to the foodItem prototype, this method has a single parameter named cart, loop through the items array in the cart object and for each item test whether it is equal to the foodItem object. If it is, use the splice() method to remove the object from the items array and break off the for loop in file rb_build.js.
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New Perspectives on HTML5, CSS3, and JavaScript
- Refer to page 60 for solving the Knapsack problem using dynamic programming. Instructions: • Implement the dynamic programming approach for the 0/1 Knapsack problem. Clearly define the recurrence relation and show the construction of the DP table. Verify your solution by tracing the selected items for a given weight limit. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS3IZ9qoHazb9tC440AZF/view?usp=sharing]arrow_forwardRefer to page 70 for problems related to process synchronization. Instructions: • • Solve a synchronization problem using semaphores or monitors (e.g., Producer-Consumer, Readers-Writers). Write pseudocode for the solution and explain the critical section management. • Ensure the solution avoids deadlock and starvation. Test with an example scenario. Link: [https://drive.google.com/file/d/1wKSrun-GlxirS31Z9qo Hazb9tC440AZF/view?usp=sharing]arrow_forward15 points Save ARS Consider the following scenario in which host 10.0.0.1 is communicating with an external SMTP mail server at IP address 128.119.40.186. NAT translation table WAN side addr LAN side addr (c), 5051 (d), 3031 S: (e),5051 SMTP B D (f.(g) 10.0.0.4 server 138.76.29.7 128.119.40.186 (a) is the source IP address at A, and its value. S: (a),3031 D: (b), 25 10.0.0.1 A 10.0.0.2. 1. 138.76.29.7 10.0.0.3arrow_forward
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- New Perspectives on HTML5, CSS3, and JavaScriptComputer ScienceISBN:9781305503922Author:Patrick M. CareyPublisher:Cengage Learning