I n this article, we'll learn how we can ensure that image is loaded on our webpage. We'll learn how to call a function after image is loaded in javascript? Sometime it is very important to call a function after image is loaded, so in this article, we'll see how we can call a function just after image is loaded on our webpage.

Let's get started:

in this article, for demo purpose, we'll use an img tag and we w'll use img.complete property to check wether our image is loaded or not.

Let's have a look in below codes:

file: function_after_image.html

                    
                      <!DOCTYPE html>
                    <html>
                    <head>
                        <title>
                            Call a function after image is loaded in javascript - IDKBlogs
                        </title>
                        <style>
                            #sologo {
                                height: 100%;
                                width: 100%;
                            }
                        </style>
                    </head>
                    
                    <body style="width: 500px; height: 400px;">
                        <img src="https://idkblogs.com/images/logo/logo1_250x150.png" alt="idkblogs technology, javascript, nodejs, angularjs, react" id="sologo" />
                        <script type="text/javascript">
                          let img = document.querySelector('img')
                          function loaded() {
                            alert('loaded')
                          }
                    
                          if (img.complete) {
                            loaded()
                          } else {
                            img.addEventListener('load', loaded)
                            img.addEventListener('error', function () {
                              alert('error')
                            })
                          }
                        </script>
                    </body>
                    
                    </html>

In the above code we are using img.complete property to check wether image is loaded or not.
If image is loaded then img.complete will be true otherwise it will give you false.

Result:

Call a function after image is loaded in javascript

Conclusion:

So, in this article, we saw how we can call a function after image load on our webpage. This is very useful in many scenarios. Every JS developer should know these things.

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Call a function after image is loaded in javaScript

How to know that image is loaded on your webpage? Call a function when image is loaded in your webpage.

Let's get started:

Conclusion:

Support our IDKBlogs team

Welcome to IDKBlogs.

If our contents help you and you learned from this platform, please consider supporting what we do.

Thank you.

Strongly Recommended Books For You:

For India:

For Other Countries (United States, United Kingdom, Spain, Italy, Germany, France, Canada, etc)

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