Skip to Content
Solidity Programming Essentials
book

Solidity Programming Essentials

by Ritesh Modi
April 2018
Intermediate to advanced content levelIntermediate to advanced
222 pages
5h 28m
English
Packt Publishing
Content preview from Solidity Programming Essentials

Variables hoisting

Hoisting a concept is where variables need not be declared and initialized before using the variable. The variable declaration can happen at any place within a function, even after using it. This is known as variable hoisting. The Solidity compiler extracts all variables declared anywhere within a function and places them at the top or beginning of a function and we all know that declaring a variable in Solidity also initializes them with their respective default values. This ensures that the variables are available throughout the function.

In the following example, firstVar, secondVar, and result are declared towards the end of the function but utilized at the beginning of the function. However, when the compiler generates ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Solidity Programming Essentials - Second Edition

Solidity Programming Essentials - Second Edition

Ritesh Modi
The Go Programming Language

The Go Programming Language

Alan A. A. Donovan, Brian W. Kernighan
Linux Kernel Programming

Linux Kernel Programming

Kaiwan N. Billimoria
Programming Rust, 2nd Edition

Programming Rust, 2nd Edition

Jim Blandy, Jason Orendorff, Leonora F. S. Tindall

Publisher Resources

ISBN: 9781788831383Supplemental Content