How should you build the code segment?

HOTSPOT

An HTML page has a canvas element.

You need to draw a red rectangle on the canvas element dynamically. The rectangle should resemble the following graphic.

How should you build the code segment? (To answer, select the appropriate options from the drop-down lists in the answer area.)

View Answer

Answer:

Explanation:

* getElementById

The getElementById() method accesses the first element with the specified id. We use it to get a reference to the canvas.

* context.fillStyle.

Example:

Define a red fill-color for the rectangle:

JavaScript:

var c=document.getElementById("myCanvas");

var ctx=c.getContext("2d");

ctx.fillStyle="#FF0000";

ctx.fillRect(20,20,150,100);

Reference: HTML canvas fillStyle Property