asking doubt

[sivajisj]

function fund() public payable {
        require(msg.value.getConversionRate() >= MINIMUM_USD, "You need to spend more ETH!");
        // require(PriceConverter.getConversionRate(msg.value) >= MINIMUM_USD, "You need to spend more ETH!");
        addressToAmountFunded[msg.sender] += msg.value;
        funders.push(msg.sender);
    } ``` 

**### can any help whats going on this function** 

[Shawon-Mandal]

@sivajisj
The fund function is public means anyone can call it and it is payable that means eth can be sent through this function
in the require statement, "msg.value.getConversionRate()>=MINIMUM_USD" means the fund sent through the fund function needs to be greater than the minimum usd set in the contract
next, in the addressToAmountFunded[msg.sender]+=msg.value; the fund amount gets updated to the addressToAmountFunded variable.
next, we see that whoever funds in this contract,their address gets pushed in the funders variable.

[KarthickSakthi]

@sivajisj
The above code represents

1. Function fund() which is public payable , which means , this function can be accessed by anyone (due to public) also can able to send ETH or money to this function (due to payable).
2. It initially checks, require(msg.value.getConversionRate() >= MINIMUM_USD, "You need to spend more ETH!"); - Then ETH (ms.value) send by the user (msg.sender) will be converted to USD with the help of getConversionRate() function and checks whether it is greater than or equal to MINIMUM_USD, Otherwise it throws "You need to spend more ETH!"
3. addressToAmountFunded[msg.sender] += msg.value - addressToAmountFunded is a mapping which stores Sender address (msg.sender) and the value (ETH / msg.value) that he funded to the contract
4. funders.push(msg.sender) - funders is an array which stores the address of every user who funded to the contract