Practice I

Let's practice what we learned until now. Practicing is a vital element of becoming a NEAR developer. In this part, we have a smart contract that was created by the NEAR education team. We want to clone this repository and make changes as follows. This is the second time you make changes to a smart contract in our course.

git clone https://github.com/Learn-NEAR/starter--near-sdk-as

yarn

Task 1

In src/simple/assembly/index.ts

export function helloWorld(): string {
  return 'hello world'
}

Change to,

export function helloWorld(): string {
  return 'hello <Your Name>'
}

yarn build:release

near dev-deploy ./build/release/simple.wasm

export CONTRACT=<YOUR_DEV_ACCOUNT_HERE>

near view $CONTRACT helloWorld

output,

hello <Your Name>

Congrats! You have made changes on a smart contract :)

Task 2

In src/simple/assembly/index.ts

export function helloWorld(): string {
  return 'hello <Your Name>'
}

Change to,

export function helloWorld(name: string): string {
  return 'hello ' + name
}

yarn build:release

near dev-deploy ./build/release/simple.wasm

near view $CONTRACT helloWorld '{"name": "<Your Name>"}'

output,

hello <Your Name>

Task 3

In src/simple/assembly/index.ts

`` export function helloWorld(name: string): string { return 'hello ' + name }

Change to,

export function helloWorld(names: Array<string>): string {
  return names.map<string>(name => 'hello ' + name).join(` `)
}

yarn build:release

near dev-deploy ./build/release/simple.wasm

near view $CONTRACT helloWorld '{"names": ["<Your Name>", "<Friend Name>"]}'

output,

hello <Your Name>
hello <Friend Name>

After you finish your tasks, create a new repository in your GitHub with the latest changes you made during the practice. Send us your repo link. It must include changes you made.