JavaScriptで実装してて思ったこと_1

HTML

<div>
  <canvas id="sample" width="400" height="400"/>
</div>

CSS

div {
    margin-bottom: 10px;
}

input[type="text"] {
    width: 100px;
}

JavaScript

window.onload = function(){
var canvas = $('#sample');
var context = canvas.getContext('2d');

context.beginPath();
context.moveTo(10,10);
context.lineTo(40,40);
context.stroke();
}