Need to get image tag in wechat mini program

Question

I'm trying to get the image src from wxml. All of the image src should be obtained and replaced.

What should replace document.getElementsByTagName in Wechat Mini?

Answer 1

js: var that = this;

    var query = wx.createSelectorQuery();
    
    query.select('.classname').boundingClientRect(function (params) {
        cosnole.log(params)
    })

Answer 2

As for your original question, perhaps you could use a "custom property" (data-xxx) to get your src

<image src="{{src}}" data-src="{{src}}" bindtap="ontap" />
js:
Page({
    data: {
        src:'1.jpg'
    },
 
    ontap:function(e) {
        const {src} = e.currentTarget.dataset;
        console.log(src);
    }
})