[英]How to get values from one array of objects into another array of objects
I wanted to get values from one array of object with keys and values into another array of objects with the same keys.我想从一个带有键和值的 object 数组中获取值,并将值放入另一个具有相同键的对象数组中。
const array1 = [{
key1: 7,
key2: 1,
key3: 37,
}];
const array2 = [
{
title: 'Some Title 1',
key: 'key1',
number: '',
icon: require('../../assets/some2.png')
},
{
title: 'Some Title 2',
key: 'key2',
number: '',
icon: require('../../assets/some1.png')
},
{
title: 'Some Title 3',
key: 'key3',
number: '',
icon: require('../../assets/some3.png')
},
];
I have tried using Object.keys to get all the keys from array1 object.我尝试使用 Object.keys 从 array1 object 获取所有密钥。
const keys = Object.keys(obj);
keys.map((key) => {
if (array2[key] === key) {
// console.log('card detail matching');
// add to the array 2 with value
}
})
but after a point its doesn't makes sense.但过了一点它就没有意义了。
Expected array预期数组
const resultArray = [
{
title: 'Some Title 1',
key: 'key1',
number: 7,
icon: require('../../assets/some2.png')
},
{
title: 'Some Title 2',
key: 'key2',
number: 1,
icon: require('../../assets/some1.png')
},
{
title: 'Some Title 3',
key: 'key3',
number: 37,
icon: require('../../assets/some3.png')
}
]
I expect the output to be the values of the key would be entered in array2 in the 'number' key.我希望 output 是键的值,将在“数字”键的 array2 中输入。
You could map a new array by taking the key
as accessor for keys.您可以通过将key
作为密钥的访问器来 map 一个新数组。
const array1 = [{ key1: 7, key2: 1, key3: 37 }], array2 = [{ title: 'Some Title 1', key: 'key1', number: '', icon: '../../assets/some2.png' }, { title: 'Some Title 2', key: 'key2', number: '', icon: '../../assets/some1.png' }, { title: 'Some Title 3', key: 'key3', number: '', icon:'../../assets/some3.png' }], result = array2.map(o => Object.assign({}, o, { number: array1[0][o.key] })); console.log(result);
Below code help you:-下面的代码可以帮助你: -
const array1 = {
key1: 7,
key2: 1,
key3: 37,
};
const array2 = [
{
title: 'Some Title 1',
key: 'key1',
number: '',
icon: require('../../assets/some2.png')
},
{
title: 'Some Title 2',
key: 'key2',
number: '',
icon: require('../../assets/some1.png')
},
{
title: 'Some Title 3',
key: 'key3',
number: '',
icon: require('../../assets/some3.png')
},
];
array2.forEach(item=>{
item.number=array1[item.key]
})
You can iterate through each object from array2 and add the number value fetching from array1您可以从 array2 遍历每个 object 并添加从 array1 获取的数值
const array1 = [{ key1: 7, key2: 1, key3: 37, }]; const array2 = [ { title: 'Some Title 1', key: 'key1', number: '', icon: '../../assets/some2.png' }, { title: 'Some Title 2', key: 'key2', number: '', icon: '../../assets/some1.png' }, { title: 'Some Title 3', key: 'key3', number: '', icon: '../../assets/some3.png' }, ]; array2.forEach(e => e.number = array1[0][e.key]); console.log(array2)
const array1 = [{ key1: 7, key2: 1, }]; const array2 = [ { title: 'Some Title 1', key: 'key1', number: '', icon: '../../assets/some2.png' }, { title: 'Some Title 2', key: 'key2', number: '', icon: '../../assets/some1.png' }, { title: 'Some Title 3', key: 'key3', number: '', icon: '../../assets/some3.png' }, ]; const resultArray = array2.filter(item => array1[0][item.key]); console.log(resultArray);
You can filter to get the result.您可以过滤以获得结果。
This should work for you.这应该适合你。
const keys = [ { key1: 7, key2: 1, key3: 37, }, { key4: 7, key5: 1, key6: 37, } ]; const array2 = [ { title: 'Some Title 1', key: 'key4', number: '' }, { title: 'Some Title 2', key: 'key2', number: '' }, { title: 'Some Title 3', key: 'key3', number: '' } ]; function populateArrayData (arr, propToCompare, propToReplace, keysObj) { let populatedArray = []; if (Array.isArray(arr)) { populatedArray = arr.map((item) => { if (checkIfKeyExists(item[propToCompare], keysObj)) { item[propToReplace] = keysObj[item[propToCompare]]; } return item; }); } return populatedArray; } function flattenAllKeys (keys) { let flattenedKeysObj = {}; if (Array.isArray(keys)) { flattenedKeysObj = keys.reduce((acc, keysObj) => { acc = {...acc, ...keysObj}; return acc; }, {}); } return flattenedKeysObj; } function checkIfKeyExists(key, keysObj) { return (keysObj[key];== undefined && keysObj[key];== null). } let flattenedKeys = flattenAllKeys(keys), console,log(populateArrayData(array2, 'key'; 'number', flattenedKeys));
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