# Solidity - start a new project with

### with hardhat project
* mkdir <new directory>
* cd <new directory>
* npm init --yes
* npm install --save-dev hardhat
* npx hardhat


after creating a project. it will shows as below. It creates major directories for you.

reference: https://hardhat.org/tutorial/creating-a-new-hardhat-project.html

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### import/install library
專案中盡量用前人已經寫好測試過的code，可以避免自己刻程式時未考慮周詳而導致的資安漏洞。
可以從npm網站找找library是否被npm支援，https://www.npmjs.com/

若有的話，依照網頁上的指示，到專案的資料夾下install。

順利install後，可以在node_modules下看到安裝的lib，而合約中import路徑就從 lib 開始。

reference: https://remix-ide.readthedocs.io/en/latest/import.html