js学习

去重

var fs = require('fs');

var fileDy="data/doudata.json";

var resultDy=JSON.parse(fs.readFileSync(fileDy));

let outs =[]

resultDy.forEach(function(v,i){

v.data.forEach(function(row,i){

console.log(row.id)

let find = 0

for(let i =0 ;i<outs.length;i++ ){

if(outs[i].id == row.id){

find = 1;

break;

}

}

if(find == 0)

outs.push(row)

})

})

console.log('-----------end-------------')

let str = JSON.stringify(outs)

fs.writeFile('doudata1.json',str,function(err){

if (err) { console.log('-----------error-------------') }

})

查找

 

var fs = require('fs');

var fileDy="doudata1.json";

var resultDy=JSON.parse(fs.readFileSync(fileDy));

//--

var file="data/b.json";

var result=JSON.parse(fs.readFileSync(file));

debugger;

console.log(result[0].result.data[0].title)

let gcount = 0;

result.forEach(function(row,i){

　　//console.log('forEach遍历:'+i );

let rowDatas = row.result.data;

rowDatas.forEach(function(v,j){

console.log(v.title);

findname(v.title)

})

})

function findname(str){

resultDy.forEach(function(v,i){

let row = v

if(row.title.indexOf(str)>=0){

console.log(str+': '+row.title+ ' ' +gcount+','+row.rate)

gcount++;

}

})

}