我知道以前也有人问过类似的问题，但这个问题有点不同。我有一个未命名对象的数组，其中包含一个命名对象的数组，我需要得到其中“name”为“string 1”的对象。下面是一个示例数组。
var array = [
{ name:"string 1", value:"this", other: "that" },
{ name:"string 2", value:"this", other: "that" }
];
更新:我应该早点说，但一旦我找到它，我想用一个编辑过的对象替换它。
当前回答
你可以使用npm中的查询对象。您可以使用筛选器搜索对象数组。
const queryable = require('query-objects');
const users = [
{
firstName: 'George',
lastName: 'Eracleous',
age: 28
},
{
firstName: 'Erica',
lastName: 'Archer',
age: 50
},
{
firstName: 'Leo',
lastName: 'Andrews',
age: 20
}
];
const filters = [
{
field: 'age',
value: 30,
operator: 'lt'
},
{
field: 'firstName',
value: 'Erica',
operator: 'equals'
}
];
// Filter all users that are less than 30 years old AND their first name is Erica
const res = queryable(users).and(filters);
// Filter all users that are less than 30 years old OR their first name is Erica
const res = queryable(users).or(filters);
其他回答
你可以用一个简单的循环来实现:
var obj = null;
for (var i = 0; i < array.length; i++) {
if (array[i].name == "string 1") {
obj = array[i];
break;
}
}
根据ECMAScript 6，您可以使用findIndex函数。
array[array.findIndex(x => x.name == 'string 1')]
function getValue(){
for(var i = 0 ; i< array.length; i++){
var obj = array[i];
var arr = array["types"];
for(var j = 0; j<arr.length;j++ ){
if(arr[j] == "value"){
return obj;
}
}
}
}
var array = [
{ name:"string 1", value:"this", other: "that" },
{ name:"string 2", value:"this", other: "that" }
];
var foundValue = array.filter(obj=>obj.name==='string 1');
console.log(foundValue);
考虑到您有以下片段:
var array = [
{ name:"string 1", value:"this", other: "that" },
{ name:"string 2", value:"this", other: "that" }
];
您可以使用以下函数来搜索项目
const search = what => array.find(element => element.name === what);
您可以检查是否找到了该项目。
const found = search("string1");
if (found) {
console.log(found.value, found.other);
} else {
console.log('No result found');
}
