Make a global search code and highlight it-JS Tutorial-php.cn

This time I will bring you theprecautions for making and highlighting the global search code and highlighting the global search code. The following is a practical case, let's take a look.

Requirements

When I was working on a WeChat applet recently, I needed to achieve global matching and highlight effects when entering content in the search box. The current idea is , recursively return the data in the background, and replace the value of the object with the required

dom node, and achieve the highlighting effect through rich-text.

Code

wxml:

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js:

//index.js const app = getApp() Page({ data: { json: [{ name: 'eiolewkfp', age: 'awdqwwdk', address: 'aueifwhefwfheffoewjowef',aihao:['sdsd','sdfsd','sdsf']}, { name: '98797', age: '6544656', address: '65494364' }], // 可以是任何类型的数据 newJson: '', tempText:'' }, onLoad: function (options) { this.setData({ newJson:this.data.json }) }, digui: function (newJson,obj,key) { // 递归方法，来遍历最内层的字符串并通过正则来替换 var that = this; var reg = new RegExp(that.data.tempText,'g'); if (newJson.constructor == Array) { newJson.forEach(function (item,index) { if (item.constructor == String){ obj[key].splice(index, 1, item.replace(reg, "" + that.data.tempText + "")) }else{ that.digui(item, newJson); } }); } else if (newJson.constructor == Object) { var json = {}; for (var key in newJson) { json[key] = newJson; that.digui(newJson[key],newJson,key); } } else if (newJson.constructor == String) { // 这里做全局替换 if(key){ obj[key] = newJson.replace(reg, "" + that.data.tempText + "") } } }, bindKeyInput: function (e) { // 每次输入来监听键盘，处理匹配的数据 var text = e.detail.value; this.setData({ tempText:text }) var newJson = JSON.parse(JSON.stringify(this.data.json)); // 实现深复制 this.digui(newJson); this.setData({ newJson:newJson }) } })

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I believe you have mastered the method after reading the case in this article, more Please pay attention to other related articles on the php Chinese website!