FREE Solidity (Web Dev) Question and Answers
Who created Ethereum?
Explanation:
Gavin James Wood, an English computer scientist, developed Ethereum. Since then, many projects, including Polkadot, Kusama, and Ethereum, have incorporated his work.
What can the deployer use to run code on the blockchain?
Explanation:
A deployer can utilize the Solidity programming language to execute code on the blockchain. For addressing errors, this language offers a number of functions. When an error happens, for instance, it can instantly restore the blockchain's state. The assert() and need() methods are also provided, which further inhibits illegal code access.
Which programming language were used to create smart contracts on the Ethereum blockchain?
Explanation:
Smart contracts are developed using the object-oriented programming language Solidity on the Ethereum network. The Ethereum Virtual Machine may execute programs written in this language, which was developed by Christian Reitwiessner and Alex Beregszaszi. This article has more information on it. Solidity is utilized in numerous other applications in addition to Ethereum smart contracts.
What is the name of the Ethereum dapp development environment?
Explanation:
A dapp development environment for Ethereum is called Hardhat. Multiple Solidity compiler versions, strong Mainnet fork support, TypeScript support, an useful stack trace, and contract verification with Etherescan are all included. Both signing up and using it is free.
What are state variables in Solidity stored in?
Explanation:
State variables are kept in slots, which are arrays in Solidity. Access to each slot is determined by contract code sequence and has a predetermined size.
What's an example of a calldata?
Explanation:
Another temporary data store used by Solidity is called calldata. A memory area known as a calldata resides in the EVM's memory. When you don't require access to the data, you can use this storage. However, bear in mind that calldata variables are only accessible within the declaration of a function. You won't make dumb mistakes if you are aware of this.
How big is the default size of a storage array in Solidity
Explanation:
A storage array's default size is 2256 bytes. By altering the length parameter, the array's size is modifiable. We'll examine the many forms of storage and how they individually function in this post.
