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This article focuses on "how to draw an image using JavaScript". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn how to draw an image using JavaScript.

The canvas element itself does not have the ability to draw. All drawing work must be done within JavaScript:

Example

Varc=document.getElementById ("myCanvas")

Varctx=c.getContext ("2d")

Ctx.fillStyle= "# FF0000"

Ctx.fillRect (0jue 0150,150,75)

Instance resolution:

First, find the element:

Varc=document.getElementById ("myCanvas")

Then, create the context object:

Varctx=c.getContext ("2d")

The getContext ("2d") object is a built-in HTML5 object with a variety of ways to draw paths, rectangles, circles, characters, and add images.

The following two lines of code draw a red rectangle:

Ctx.fillStyle= "# FF0000"

Ctx.fillRect (0jue 0150,150,75)

Setting the fillStyle property can be a CSS color, gradient, or pattern. The default setting for fillStyle is # 000000 (black).

The fillRect method defines the current filling method of the rectangle.

At this point, I believe you "how to use JavaScript to draw images" have a deeper understanding, might as well to the actual operation of it! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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