Automatically generate unit price for applicable items when shopping online.

Last update: Nov 18, 2022

Related tags

Overview

Unit Price Helper

Unit Price Helper is an Google Chrome extension that allows to display the prices per unit for the products on multiple shopping sites, including Harris Teeter, Costco and Target.

Online shopping sites give us more choices of products, but to some extent, online shopping also increases the difficulty of selection. Most people tend to buy cheaper products, but which are cheaper? $18.38 for 48 Fl Oz or $27.49 for 101 Fl Oz? It's difficult to calculate each products' unit price manually. UnitPriceHelper is a solution to unit price comparation. It calculates the unit prices of products automatically and attach unit price tags to the product listing pages and product description pages, thus helping customers figure out each item's unit price.

Introduction Video

Features

Display unit price tags on listing pages.

Display unit price tags on product description pages.

Supported Websites

More will be supported in the future...

Installation

Install from Google Web Store

Install from here

Install from GreasyFork

Please make sure you already installed tampermonkey or greasemonkey to your browser
Install Unit Price Helper from greasyfork

Manually install

Git clone this repository.

git clone https://github.com/yzhu27/UnitPriceHelper.git

Open Google Chrome browser, click upper right three-dot "More" button $\rightarrow$ "More Tools" $\rightarrow$ "Extensions".

Turn on "Developer mode", then choose "Load unpacked".

Select extension folder in the UnitPriceHelper folder
Start your online shopping!

Note

Make sure you allow the extension to read and change this page.

2) If the unit price tags doesn't appear, try to refresh your page.

Languages

JavaScript

Style Checker and Code Fomatter

IDE and Style Checker: VSCode
Code Style Formatter: Beautify
Code Syntax Checker : Eslint for Vscode plugin.

Test and Coverage

Statements	Branches	Functions	Lines

Unit Test

Mocha and Chai.
Setup

From the repository root, run:
```
npm install
npm run test:unit
```

Code Coverage

Istanbul

Automated Analysis Tool

DeepScan

Contributors

SE22 Group 7

Pinxiang Wang
Jiayuan Huang
Yuheng Zhu
Mengzhe Wang
Yiran Zhu

Comments

Discovered problems in unitPrice.js

Problem 1: For if the quantity of the item is not in digits, for example, "1/2" or "0.5", the js file cannot get the correct result yet. This may be solved by updating regular expression later?

Problem 2: There may be cases that the price/unit is already been provided, but this is not considered/distuiguish by the js file yet. Notice that the format is "$[digits]/[unit]". This can be solved by adding an if statement before applying regular expression.

Problem 3: The style of inserted tag (span) does not apply CSS changes. The reason is not yet found.

Somebody is yelling outside right now :)
bug

opened by Lognam-Huang 4
Bug in Target.js

In the code for Items Page, Insert function will fail with parameter >= 7 if you run the code together. But if you run them separately, the function can work. Weird.
bug help wanted

opened by MZWANGgg 2
Item channels about Harris

For those products which are in poor sales, their daily purchase channels may not contain available information.

This should be solved if we are chasing a perfect work. However, since those products are usually not getting much attention, it is better to pay more attention on those more significant issues.

If there is time and resource to solve this question in the future, the discussion about how to get the aim will be listed under this issue.
enhancement invalid

opened by Lognam-Huang 1
Universality about Harris

In most of the cases, it seems that the code runs well. However, when the volumn is in the form of fractions, the Regular Expression may not be appliable.

Should we pay effort to solve such a rare issue?
enhancement help wanted question

opened by Lognam-Huang 1
Add README.md

We need a comprehensive Readme file which makes the aim and functionality of the project clear to anyone who choses to view the repository and help them get started.
documentation

opened by yzhu27 1
New website support (request)

Hi team, I just discovered this extension. Is there any possibility of adding support for this website? https://www.bizay.com/en-us/letterhead

The website already gives a quantity field and the price field:

opened by povpie 0

Owner

Yang

NCSU MCS Graduate Student, seeking for 2023 summer SDE intern.

GitHub

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