First, prefaceIn the JS Magic Hall: jsdeferred Source Analysis, we understand that the IMG element load failure can be used as an optimization scheme for asynchronous execution of functions, this article intends to further explore the loading
We understand that the IMG element loading failure can be performed as a function of the optimization scheme asynchronous, this article intends to do a more in-depth study of the loading behavior of IMG elements.
Ii. related properties and events
The pure technology of the front end is the cognition of the norm
What is a domcontentloaded event?
The first thought was to view the HTML5 specification for the domcontentloaded, and when the event was triggered:
Once The user agent stops
Simple Example of JS getting IMG image height and width, js getting img width
Some time ago, when I added the adaptive screen size function to the touchslider. js carousel code written by LJW, I encountered a problem. No matter what method you use,
Code
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Ul
>
Li
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A href
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"
#
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IMG SRC
=
"
IMG/temp.jpg
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ALT
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the latest version of the VMware10.0 support Chinese, no Chinese, installation can be, but still need a registration code, registration machine is necessary please rest assured that: Click to enter other required software: 1. System: Use of the
When IMG encounters background, the world is so small ~~~~~1 from the perspective of the analytic mechanismIMG is an HTML tag, and background is a CSS method. A page consists of HTML, CSS, JS, according to the browser parsing mechanism,HTML tags
PHP uses the Imagick module to scale, crop, compress pictures including GIF images
Zoom crop
Copy CodeThe code is as follows:/*** Picture Clipping* Cropping rules:* 1. Height is empty or zero by width scaling height adaptive* 2. Width is empty or
Copy Code code as follows:
/**
* Basic image processing, to complete the image indentation, watermark add
* When the watermark map exceeds the target picture size, the watermark can be automatically adapted to the target image and reduce
*
If you put an img inside a div, you will find that there is more than 3px of blank space underneath the IMG. Padding, margin, border are set to 0, invalid! So how do we solve this problem?Problem diagram:650) this.width=650; "alt=" \ "src="
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