JQuery Change the image of a specific numeric ID-CodePudding

I'm using a translator, so I hope you understand even if the grammar is wrong. Also, there are many things that are lacking because it hasn't been long since I learned J-Query. I want to change the SRC of an image with an ID of eListPrdImage***_1_* "*" is number The number attached to the ID is given sequentially by the server, and I want to change the image when the ID is a specific number.

$(function () {
    $("[id*=eListPrdImage]").on('ready', function () {
        var num1 = this.id.slice(13);
        var num2 = this.id.slice(19);
            if (num1 == '123' && num2 == '1') { 
            $(this).attr("src", "img.jpeg");
            }
    });
});

I wrote the code like this, but it doesn't work at all. Can you give me advice on how to modify the code?

CodePudding user response：

Retrieving id this way may not work.

Change that as below.

var num1 = $(this).attr('id').slice(13);

Edit: Try the below, by adding the code inside document.ready function.

$(document).ready(function(){
  $("[id*='img']").each(function () {
        var num1 = this.id.slice(13);
        var num2 = this.id.slice(19);
        if (num1 == '123' && num2 == '1') { 
            $(this).attr("src", "img.jpeg");
        }
  });
});