如果您运行以下代码:
myObj = {
"country": "USA",
"president": [{
"number": 1,
"vice_president": "John Adams"
},
{
"number": 2,
"vice_president": "John Adams"
}
]
};
var div1 = document.createElement('div');
div1.setAttribute('id', 'test');
document.body.appendChild(div1);
for (x in myObj) {
document.getElementById("test").innerHTML += myObj[x] + " ";
}
您将看到如下结果: USA object Object,object Object
如何在myOBJ中显示总统数组的值?
结果应该是这样的:
国家:美国
主席:排名第一的vice_president约翰·亚当斯
发布于 2018-08-13 16:09:31
请使用JSON.stringify()
完成此操作。此外,为了使打印过程看起来像样,请使用pre
标记而不是div
标记,以便保留格式!
myObj = {
"country": "USA",
"president": [{
"number": 1,
"vice_president": "John Adams"
},
{
"number": 2,
"vice_president": "John Adams"
}
]
};
var div1 = document.createElement('pre');
div1.setAttribute('id', 'test');
document.body.appendChild(div1);
document.getElementById("test").innerHTML += JSON.stringify(myObj, null, 4);
发布于 2018-08-13 16:31:19
尝试使用下面的代码。
myObj = {
"country": "USA",
"president": [{
"number": 1,
"vice_president": "John Adams"
},
{
"number": 2,
"vice_president": "John Adams"
}]
};
let output;
output = 'Country: ' + myObj.country + '<br/>';
for (let president of myObj.president) {
output += 'President (no ' + president.number + '): ' + president.vice_president + '<br/>';
}
document.getElementById("test").innerHTML = output;
输出:
Country: USA
President (no 1): John Adams
President (no 2): John Adams
发布于 2018-08-13 16:50:20
这就是你想要的。请注意,我为您提供了多个实现,以便您可以选择您想要的:
var myObj = {
"country": "USA",
"president": [{
"number": 1,
"vice_president": "John Adams"
},
{
"number": 2,
"vice_president": "John Adams"
}
]
};
// If you want to loop over all your Obj first lever
for(var k in myObj){
console.log(k); // Your keys // country, president
// If you want loop over president array
if (myObj[k] instanceof Array){
var array_obj = myObj[k];
array_obj.forEach(function(sub_item){
for(var j in sub_item){
console.log('Key ', j);
console.log('Value ', sub_item[j]);
}
});
}else{
}
}
// If you want direct access to your array president
var president = myObj['president'];
president.forEach(function (item){
console.log('Presedent Number: ' , item.number);
console.log('Presedent Name: ', item.vice_president);
});
https://stackoverflow.com/questions/51817782
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