Skip to Content
Blockchain Quick Start Guide
book

Blockchain Quick Start Guide

by Xun (Brian) Wu, Weimin Sun
December 2018
Intermediate to advanced
222 pages
6h 6m
English
Packt Publishing
Content preview from Blockchain Quick Start Guide

Import

The import keyword in solidity is very similar to JavaScript's past version, ES6. It is used to import libraries and other related features into your solidity source file. Solidity does not support export statements.

Here are a few import examples:

import * as symbolName from “solidityFile”

The preceding line shown will create a global symbol called symbolName, containing the global symbol's member from the import file: solidityFile.

Another solidity-specific syntax equivalent to the preceding import is the following:

import solidityFile as symbolName;

You can also import multiple symbols, and name some of the symbols as alias, demonstrated as follows:

import {symbol1 as alias, symbol2} from " solidityFile";

Here is an example where ...

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.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.
Julian F.
Head of Cybersecurity
QuotationMarkI wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.
Addison B.
Field Engineer
QuotationMarkI’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.
Amir M.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

Blockchain Quick Reference

Blockchain Quick Reference

Brenn Hill, Samanyu Chopra, Paul Valencourt
Blockchain Development with Hyperledger

Blockchain Development with Hyperledger

Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny
Blockchain Developer's Guide

Blockchain Developer's Guide

Brenn Hill, Samanyu Chopra, Paul Valencourt, Narayan Prusty

Publisher Resources

ISBN: 9781789807974