Ethereum Gas Refund

To get an operation done in Ethereum, the sender of the transaction must specify a gas limit before they submit it to the network & a gas price: 

• The gas limit is the maximum amount of gas the sender is willing to pay for this transaction. If an operation has LOW gas, ...

Gas is a unit that measures the amount of computational effort that it will take to execute certain operations. Each and every line of code in an Ethereum smart contract requires a certain amount of gas to be executed.

Suppose you are going on a road trip:

No, we are not over yet. After discussing the topic with my friend’s Dad (he is a doctor), I’ve made a list of things you need to understand and avoid anxiety attacks (hard to breathe moments).

1. Think of your anxiety as a biological problem, rather than thinking there is something wron...