将对象拆分为 2 个数组 javascript
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Split object into 2 arrays javascript
提问by remtsoy
I've got an object like that
我有一个这样的对象
obj = {
'baz':1,
'foo':7,
'zap':12,
'qax':15
}
I need to split it into 2 arrays
我需要将它分成 2 个数组
arr1 = ['baz', 'foo', 'zap', 'qax']
arr2 = [1, 7, 12, 15]
回答by jesusverma
Here is the simplest way:-
这是最简单的方法：-
var arr1 = Object.keys(obj);
var arr2 = Object.values(obj);
for more please go Standard built-in objects
如需更多信息，请转到标准内置对象
回答by deleted user
The simplest & most elegant way to do this:
最简单和最优雅的方法来做到这一点：
var arr1 = Object.keys(obj);
var arr2 = arr1.map(function (k) {
return obj[k];
});
回答by bhspencer
obj = {
'baz':1,
'foo':7,
'zap':12,
'qax':15
}
var arr1 = [];
var arr2 = [];
for (var prop in obj) {
arr1.push(prop);
arr2.push(obj[prop]);
}
回答by Farkhat Mikhalko
The simplest way - iterate over object properties(key, value)
最简单的方法 - 迭代对象属性（键，值）
obj = {
'baz':1,
'foo':7,
'zap':12,
'qax':15
}
var a = [];
var b = [];
for(var i in obj){
if(obj.hasOwnProperty(i)){
a.push(i);
b.push(obj[i]);
}
}
console.log(a);
console.log(b);
回答by dotnetom
You can loop over properties and add properties to arr1and values to arr2. You can use this code to achieve that:
您可以遍历属性并将属性添加arr1到arr2。您可以使用此代码来实现：
var obj = { 'baz':1, 'foo':7, 'zap':12, 'qax':15 };
var arr1 = [];
var arr2 = [];
for(var propertyName in obj) { // loop through properties
arr1.push(propertyName);
arr2.push(obj[propertyName]);
}
console.log(arr1); // prints ["baz", "foo", "zap", "qax"]
console.log(arr2); // prints [1, 7, 12, 15]
回答by dakab
Simple:
简单的：
var obj = { 'baz':1, 'foo':7, 'zap':12, 'qax':15 };
var arr1 = [], arr2 = [];
for(var prop in obj){
arr1.push(prop);
arr2.push(obj[prop]);
}
console.log( arr1 ); // === [ "baz", "foo", "zap", "qax" ]
console.log( arr2 ); // === [ 1, 7, 12, 15 ]
回答by Andreas Grünh
You have to iterate over every attribute of your object:
您必须遍历对象的每个属性：
var obj = {
'baz':1,
'foo':7,
'zap':12,
'qax':15
}
var keys = [];
var values = [];
for(var x in obj) {
keys.push(x);
values.push(obj[x]);
}
回答by M Stahl
obj = {
'baz':1,
'foo':7,
}
const [vars, vals] = Object.keys(obj).reduce(([a, b], k) => {
a.push(k)
b.push(options[k])
return [a, b]
}, [[], []])
vars //-> ['bar', 'foo']
vals //-> [1, 7]
Requires availability of:
需要具备：
回答by Anil Koppula
Use Object.getOwnPropertyNames(obj)to get the Keys of obj, and for values I'm using the for loop.
使用Object.getOwnPropertyNames(obj)获得obj的钥匙，和值我使用for循环。
JavaScript:
JavaScript：
var obj = {
'baz':1,
'foo':7,
'zap':12,
'qax':15
}
var j=0, val=[];
for(let x in obj) {
(val[j++] = obj[x]); //storing the value of obj in val
}
console.log(Object.getOwnPropertyNames(obj))
console.log(val)
Output:
输出：
[ 'baz', 'foo', 'zap', 'qax' ]
[ 1, 7, 12, 15 ]
