March 2019
Intermediate to advanced
636 pages
27h 50m
English
book
Blockchain Development with Hyperledger
by Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny
Content preview from Blockchain Development with Hyperledger
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Constructor
The constructor method is a special method for creating and initializing a contract. In solidity v0.4.23, Solidity introduced this new constructor notation and the old one was deprecated.
//newpragma solidity ^0.4.24;contract HelloWorld { function constructor() public { // ... }}//deprecatedpragma solidity ^0.4.22;contract HelloWorld { function HelloWorld () public { // ... }}
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