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Jquery can determine whether img is empty or not. The value of the img tag is controlled by the src attribute; you only need to use the "$(" img ") .attr (" src ") = ='" statement to determine whether the value of the img src attribute is equal to the empty string to determine whether the img is empty, if so, and vice versa.

The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.

Jquery can determine whether img is empty or not.

The img tag is used to embed an image into a web page, and its value is controlled by the src attribute. The src property specifies the URL in which the image is displayed.

You just need to determine whether the src attribute has a value.

The method of judgment:

Use the attr () method to get the src attribute value of the picture

Just judge whether the attribute value is an empty string.

$(function () {$("button") .click (function () {var img = $("img") .attr ("src") If ($("img") .attr ("src") = =') {alert ("img is empty");} else {alert ("img is not empty") })}) img {width: 200px; border:1px solid # FF0000 }

Whether img is empty

If the src property has no value:

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