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在對(duì)象中查找特定名稱中的值

JavaScript

侃侃爾雅 2022-05-14 14:59:23

如何從對(duì)象中獲取特定值，這是我的示例對(duì)象和偽代碼來獲得我的預(yù)期結(jié)果：items = [ {code: "1", fruits: "APPLE", color: "red"}, {code: "2", fruits: "BANANA", color: "dummy"}, {code: "3", fruits: "BANANA", color: "anotherDummy"}, {code: "4", fruits: "ORANGE", color: "orange"}]items.find("BANANA")我應(yīng)該循環(huán)它還是有一個(gè)可以輕松找到值的函數(shù)。預(yù)期結(jié)果：2,"BANANA","yellow"3,"BANANA","anotherDummy"

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3 回答

呼如林

TA貢獻(xiàn)1798條經(jīng)驗(yàn) 獲得超3個(gè)贊

你可以你filter的數(shù)組

const items = [

{code: "1", fruits: "APPLE", color: "red"},

{code: "2", fruits: "BANANA", color: "dummy"},

{code: "3", fruits: "BANANA", color: "anotherDummy"},

{code: "4", fruits: "ORANGE", color: "orange"}

];

const keyword = 'BANANA';

const filter = items.filter(item => (item.code === keyword || item.fruits === keyword ||item.color === keyword));

console.log(filter);

也適用于多個(gè)過濾器/搜索

const items = [

{code: "1", fruits: "APPLE", color: "red"},

{code: "2", fruits: "BANANA", color: "dummy"},

{code: "3", fruits: "BANANA", color: "anotherDummy"},

{code: "4", fruits: "ORANGE", color: "orange"}

];

const keyword = ['APPLE', 'BANANA'];

const filter = items.filter(item => (

keyword.includes(item.code)

|| keyword.includes(item.fruits)

|| keyword.includes(item.color)

));

console.log(filter);

反對(duì) 回復(fù) 2022-05-14

LEATH

TA貢獻(xiàn)1936條經(jīng)驗(yàn) 獲得超7個(gè)贊

希望這可以幫助 -

此代碼將返回包含找到的項(xiàng)目的數(shù)組
這將比較每個(gè)項(xiàng)目的所有屬性/鍵給出的值。
此外，最好創(chuàng)建自定義（創(chuàng)建 findCustom() 函數(shù)）而不是覆蓋內(nèi)置的 find() 方法。

var items = [{code: "1", fruits: "APPLE", color: "red"},

{code: "2", fruits: "BANANA", color: "dummy"},

{code: "3", fruits: "BANANA", color: "anotherDummy"},

{code: "4", fruits: "ORANGE", color: "orange"}]

items.findCustom = (value) =>{

let results = [];

items.find((item) => {

var listKeys = Object.keys(item);

listKeys.forEach((keyName) => {

if(item[keyName] == value)

results.push(item);

})

return results;

}

console.log(items.findCustom("BANANA"))

反對(duì) 回復(fù) 2022-05-14

絕地?zé)o雙

TA貢獻(xiàn)1946條經(jīng)驗(yàn) 獲得超4個(gè)贊

你可以使用filter方法

let filteredArray = items.filter(item => item.fruits ==='BANANA');

console.log(filteredArray);

更新

對(duì)于更多動(dòng)態(tài)過濾器，您可以創(chuàng)建要查找的字符串列表讓我們說：

let fruitsToFilter = ['BANANA', 'APPLE',...]

然后就可以使用像這樣的過濾方法來實(shí)現(xiàn)動(dòng)態(tài)過濾

let filteredArray = items.filter(item => fruitsToFilter.includes(item.fruits));

console.log(filteredArray);

反對(duì) 回復(fù) 2022-05-14

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在對(duì)象中查找特定名稱中的值

在對(duì)象中查找特定名稱中的值

3 回答

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