我有以下房地產(chǎn)家庭對象的 JavaScript 數(shù)組：
var json = {
'homes': [{
"home_id": "1",
"price": "925",
"sqft": "1100",
"num_of_beds": "2",
"num_of_baths": "2.0",
}, {
"home_id": "2",
"price": "1425",
"sqft": "1900",
"num_of_beds": "4",
"num_of_baths": "2.5",
},
// ... (more homes) ...
]
}
var xmlhttp = eval('(' + json + ')');
homes = xmlhttp.homes;
我想做的是能夠?qū)ο髨?zhí)行過濾器以返回“home”對象的子集。
例如，我希望能夠基于以下內(nèi)容進(jìn)行過濾：price、sqft、num_of_beds 和 num_of_baths。
如何在 JavaScript 中執(zhí)行類似下面的偽代碼的操作：
var newArray = homes.filter(
price <= 1000 &
sqft >= 500 &
num_of_beds >=2 &
num_of_baths >= 2.5 );
請注意，語法不必與上面完全相同。這只是一個例子。
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我很驚訝沒有人發(fā)布一行回復(fù)：
const filteredHomes = json.homes.filter(x => x.price = 500 && x.num_of_beds >=2 && x.num_of_baths >= 2.5);
...只是為了讓您可以更輕松地閱讀：
const filteredHomes = json.homes.filter( x => x.price = 500 && x.num_of_beds >=2 && x.num_of_baths >= 2.5 );
您可以使用數(shù)組.prototype.filter方法：
var newArray = homes.filter(function (el) {
return el.price = 500 &&
el.num_of_beds >=2 &&
el.num_of_baths >= 2.5;
});
實(shí)例：
var obj = {
'homes': [{
"home_id": "1",
"price": "925",
"sqft": "1100",
"num_of_beds": "2",
"num_of_baths": "2.0",
}, {
"home_id": "2",
"price": "1425",
"sqft": "1900",
"num_of_beds": "4",
"num_of_baths": "2.5",
},
// ... (more homes) ...
]
};
// (Note that because `price` and such are given as strings in your object,
// the below relies on the fact that = with a string and number
// will coerce the string to a number before comparing.)
var newArray = obj.homes.filter(function (el) {
return el.price = 500 &&
el.num_of_beds >= 2 &&
el.num_of_baths >= 1.5; // Changed this so a home would match
});
console.log(newArray);
