August 2019
Intermediate to advanced
486 pages
13h 52m
English
Content preview from Mastering Blockchain Programming with Solidity
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ERC20 implementation
The ERC20 standard only defines the interface APIs—the implementation should be written according to your needs. There are different ways of using the implementations that are available. The most updated and best place to look for the ERC20 implementation is the OpenZeppelin library of Solidity smart contracts. We have taken a part of the implementation from the OpenZeppelin library and will use it in this chapter.
There are some implementations present without using the SafeMath library. However, we recommend using the version with SafeMath library, as it's easy to understand and integer overflow will not be caused when using the SafeMath library for mathematical operations. Whenever you are writing a contract that has ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.