WeChat applet implements the function of changing the font color by clicking a button

I have introduced a lot about WeChat mini programs before. In this article, we will share with you the WeChat mini program to implement the function of changing the font color by clicking a button, which involves the WeChat mini program wx:for loop to read data values and event binding to modify element attributes. Friends in need can refer to relevant operating skills.

The example in this article describes the WeChat applet that implements the function of changing the font color by clicking a button. Share it with everyone for your reference, the details are as follows:

1. Effect display

2. Key Code

index.wxml file

我是view标签     

Use herebindtap="bindtap{{index}} "The binding event dynamically modifies the color value instyle="color:{{color}}".

index.js file

var pageData={} pageData.data={ color:'black', colorArray:['red','blue','yellow','green','black'] } for(var i=0;i<5;++i){ (function(index){ pageData['bindtap'+index]=function(e){ this.setData({ color:this.data.colorArray[index] }) } })(i) } Page(pageData)

The above content is a small case of WeChat applet implementing the function of clicking a button to change the font color. I hope it can help. Everyone.

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