Can you please have a tutorial on web3.js. Could not understand how to show the raised amount of eth.

If you are facing problem at step where you need to run truffle test in Windows cmd, then use power shell in windows it will let you run the test. As cmd open the file truffle.js in editor but power shell will run the code in truffle.js. If you want to know where to look for power shell refer this - https://docs.microsoft.com/en-us/powershell/scripting/setup/installing-windows-powershell?view=powershell-6

Hey Sundeep, Not able to buy your book mentioned above as it says payment declined. I am preety sure I have money in my account. Also the web3.js is not displaying the ethers earned. Can you please have a tutorial on web3.js to learn the front end as well.