调用wxparse组件解析HTML,上拉一次显示十条列表,当列表有几十条时明显setData页面再次渲染耗时成倍增加,有什么优化思路吗?setData应该只刷新新增加的部分,为啥会越来越慢?
for (let i = 0; i < replyArr.length; i++) {
WxParse.wxParse( 'reply' + i, 'html' , replyArr[i], that);
if (i === replyArr.length - 1) {
WxParse.wxParseTemArray( "replyTemArray" , 'reply' , replyArr.length, that)
}
}
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function wxParseTemArray(temArrayName,bindNameReg,total,that){
var array = [];
var temData = that.data;
var obj = null ;
for ( var i = 0; i < total; i++){
var simArr = temData[bindNameReg+i].nodes;
array.push(simArr);
}
temArrayName = temArrayName || 'wxParseTemArray' ;
obj = JSON.parse( '{"' + temArrayName + '":""}' );
obj[temArrayName] = array;
that.setData(obj);//渲染页面,耗时
}
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https://mp.weixin.qq.com/debug/wxadoc/dev/framework/performance/tips.html