[英]Conditional (dynamic) destructuring
Depending on the selected language, I need to destruct the object and get the desired value.根据所选的语言,我需要破坏对象并获得所需的值。
How do I do this so as not to destruct the entire object?我该怎么做才能不破坏整个对象?
const translate = {
"navMenu1": {
"en": "Menu 1",
"ru": "Меню 1"
},
"navMenu2": {
"en": "Menu 2",
"ru": "Меню 2"
},
"navMenu3": {
"en": "Menu 3",
"ru": "Меню 3"
}
}
const Header = props => {
const { lang } = props;
const {
navMenu1,
navMenu2,
navMenu3
} = translate;
return (
<header className={cnGreetingHeader}>
<div>-Logo-</div>
<nav className={cnNav}>
<div className={cnItem}>{navMenu1[lang]}</div>
<div className={cnItem}>{navMenu2[lang]}</div>
<div className={cnItem}>{navMenu3[lang]}</div>
</nav>
</header>
);
};
I want instead我想要
<div className={cnItem}>{navMenu1[lang]}</div>
Use用
<div className={cnItem}>{navMenu1}</div>
Important: I would like an answer that uses destructuring assignment, if possible.重要提示:如果可能,我想要一个使用解构赋值的答案。
Altougth you asked destructing, you can just map the object values, its more scalable, what happens when you have much more nav items?尽管您要求破坏,您可以只映射对象值,它更具可扩展性,当您有更多导航项目时会发生什么?
<nav className={cnNav}>
{Object.values((navMenu) => (
<div key={navMenu.id} className={cnItem}>
{navMenu[lang]}
</div>
))}
</nav>
You could take a nested destructuring and take the outer name as variable.您可以采用嵌套解构并将外部名称作为变量。
const translate = { navMenu1: { en: "Menu 1", ru: "Меню 1" }, navMenu2: { en: "Menu 2", ru: "Меню 2" }, navMenu3: { en: "Menu 3", ru: "Меню 3" } }, Header = props => { const { lang } = props, { navMenu1: { [lang]: navMenu1 }, navMenu2: { [lang]: navMenu2 }, navMenu3: { [lang]: navMenu3 } } = translate; console.log(navMenu1); console.log(navMenu2); console.log(navMenu3); }; Header({ lang: 'en' });
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