import React from 'react';

import ReactCanvasPaint from 'react-canvas-paint'
import 'react-canvas-paint/dist/index.css'

export default function App() {
	return (
		<div>
			<ReactCanvasPaint width="4000" height="800"/>
		</div>
	);
};


import React from 'react';
import { shallow, configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

configure({ adapter: new Adapter() });

import HelloWorld from './app';

var TestResult = function() {
    this.succeeded = false;
    this.reason = "";
    this.input = "";
    this.expected_output = "";
    this.actual_output = "";
}

export const executeTests = function() {

  var results = [];

  result = new TestResult();
  result.input = 'HelloWorld Component';
  result.expected_output = "span containing text 'Hello World'"

  let wrapper = shallow(<HelloWorld />);

  // Call your Challenge function here.

  let type = wrapper.type();
  let testSuccessful = true;
  let failureReason;

  if (type !== 'span') {
    testSuccessful = false;
    failureReason = "You need to render exactly one span HTML element";
  } else if (wrapper.props().children != "Hello World") {
     testSuccessful = false;
     failureReason = "You have rendered wrong message in your span element";
  }

  result.actual_output = wrapper.html();

  if (testSuccessful) {
    result.succeeded = true;
    result.reason = "Succeeded"
  } else {
    result.succeeded = false;
    result.reason = failureReason;
  }

  results.push(result);

  return results;
}


Canvas

React

Dart

GoJS React

Typescript React

Vue.js

Props

align-center

canvas.tar.gz

How to implement canvas in React

Integrate the `react-canvas-paint` library in React by installing dependencies and rendering with customizable canvas dimensions.

Property	Type	Default	Description
`width`	number	400	Canvas width
`height`	number	400	Canvas height
`viewOnly`	bool	false	Set to true disable drawing on canvas
`data`	Object	undefined	Initial imageData that can be put on the canvas
`onDraw`	function	undefined	Function with imageData on every line drawn
`colors`	Array	['#7030A2', '#000000', '#0170C1', '#FE0002', '#FFFF01', '#00AF52']	array of choosable colors to draw
`strokeWidth`	number	5	width of drawing stroke

How to implement canvas in React

Installing dependencies

Rendering canvas in React

Props