js获取对象数组中的某属性并且拼接成字符串
代码部分:
var obj=[
{id:1,name:\’张三\’},
{id:2,name:\’李四\’},
{id:3,name:\’王五\’},
{id:4,name:\’赵六\’},
];
var str=””;
str=obj.map(function(elem,index){
return elem.id;
}).join(“,”);
console.log(str);
str=””;
for(let i=0,j=obj.length;i<j;i++){
str+=obj[i].id+”,”;
}
str=str.substring(0,str.length-1);
console.log(str);