This is one of the many projects available on Codedamn to reinforce your learning by building. If you want to become a Blockchain Developer and learn by practicing, feel free to attempt this challenge. Feel free to check out the codedamn Web3 Learning Path to learn more about how to become an awesome Blockchain Developer.
Use the ERC20 interface given in the ERC20.sol and create your own ERC20 Token.
Description of the functions -
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totalSupply() → uint256 Returns the amount of tokens in existence.
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balanceOf(address account) → uint256 Returns the amount of tokens owned by account.
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transfer(address recipient, uint256 amount) → bool Moves amount tokens from the caller’s account to recipient. Returns a boolean value indicating whether the operation succeeded. Emits a Transfer event.
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allowance(address owner, address spender) → uint256 Returns the remaining number of tokens that spender will be allowed to spend on behalf of owner through transferFrom. This is zero by default. This value changes when approve or transferFrom are called.
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approve(address spender, uint256 amount) → bool Sets amount as the allowance of spender over the caller’s tokens. Returns a boolean value indicating whether the operation succeeded. Emits an Approval event.
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transferFrom(address sender, address recipient, uint256 amount) → bool Moves amount tokens from sender to recipient using the allowance mechanism. amount is then deducted from the caller’s allowance. Returns a boolean value indicating whether the operation succeeded. Emits a Transfer event.
Description of the events -
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Transfer(address from, address to, uint256 value) event Emitted when value tokens are moved from one account (from) to another (to). Note that value may be zero.
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Approval(address owner, address spender, uint256 value) event Emitted when the allowance of a spender for an owner is set by a call to approve. value is the new allowance.
Note - You have to write the migration script also in the migration file.