Since Solidity v0.4.23, Solidity has new constructor notation.
And The old one was deprecated.
Old
pragma solidity 0.4.23; contract Foo { function Foo() public { // ... } } New
pragma solidity 0.4.23; contract Foo { constructor() public { // ... } } Note
The old one raise below.
Warning: Defining constructors as functions with the same name as the contract is deprecated. Use "constructor(...) { ... }" instead. 
Top comments (2)
Quick and very well explained, Thanks!
😉