Javascript-在对象中插入一项

如何在

Javascript

中的对象中插入项

var colorData = new Object();
var stateData = {
           states:
            [
              { 'state' : 'CA', 'color' : '#61c419', 'amaguide' : '5'},
              { 'state' : 'AZ', 'color' : '#61c419', 'amaguide' : '5'}
            ]
    }

for (var i = 0; i < stateData.length; i++) {            
       colorData.push(stateData[i].state + ':' + stateData[i].color);            
    }

---

谢谢

只需将项目分配给对象属性即可

.push（）

用于阵列

var o = {};
o.newProperty = 'hier';
o.otherProperty = [1, 2, 3];

是你的朋友：

var stateData = {
           states:
            [
              { 'state' : 'CA', 'color' : '#61c419', 'amaguide' : '5'},
              { 'state' : 'AZ', 'color' : '#61c419', 'amaguide' : '5'}
            ]
    };


var colorData = stateData.states.map(function(ele) {
    return ele.state + ':' + ele.color;
});

如果希望结果为

{CA:'#61c419'，AZ:'#61c419'}

，则：

var colorData = stateData.states.reduce(function(v, w) {
    v[w.state] =  w.color;
    return v; 
}, {});

---

也许阵列更好：

...
var colorData = new Array();
...

---

试试这个很容易

var colorData = new Object();
var stateData = {
           states:
            [
              { 'state' : 'CA', 'color' : '#61c419', 'amaguide' : '5'},
              { 'state' : 'AZ', 'color' : '#61c419', 'amaguide' : '5'}
            ]
};
for(var i=0; i<stateData.states.length; i++)
{
    colorData[stateData.states[i].state] = stateData.states[i].color;
}

console.log(JSON.stringify(colorData));

---

@Anup第二个解决方案将为您提供预期的结果。现在的结果是

AZ:“61c419”，CA:“61c419”

。。。。我们怎样才能到达

“AZ”：“#61c419”，“CA”：“#61c419”

？@Anup你所说的没有区别，都是javascript对象的有效语法。嘿，看看我的答案，它比任何其他方法都快。。。Anup@NidhishKrishnan是的，谢谢@NidhishKrishnan这是真的。@NidhishKrishnan您的代码无论如何工作得更快

var colorData = new Object();
var stateData = {
           states:
            [
              { 'state' : 'CA', 'color' : '#61c419', 'amaguide' : '5'},
              { 'state' : 'AZ', 'color' : '#61c419', 'amaguide' : '5'}
            ]
};
for(var i=0; i<stateData.states.length; i++)
{
    colorData[stateData.states[i].state] = stateData.states[i].color;
}

console.log(JSON.stringify(colorData));

{"CA":"#61c419","AZ":"#61c419"}