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bisubus/ES5-ES6-ES2017-ES2019 omit & pick

Last active April 13, 2024 21:03
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ES5/ES6/ES2017/ES2019 omit & pick
Raw
omit-es2015.js
Object.keys(obj)
.filter((key) => ['blacklisted', 'keys'].indexOf(key) < 0)
.reduce((newObj, key) => Object.assign(newObj, { [key]: obj[key] }), {})
Raw
omit-es2017.js
Object.entries(obj)
.filter(([key]) => !['blacklisted', 'keys'].includes(key))
.reduce((obj, [key, val]) => Object.assign(obj, { [key]: val }), {});
Raw
omit-es2019.js
Object.fromEntries(
Object.entries(obj)
.filter(([key]) => !['blacklisted', 'keys'].includes(key))
);
Raw
pick-es2015.js
Object.keys(obj)
.filter((key) => ['whitelisted', 'keys'].indexOf(key) >= 0)
.reduce((newObj, key) => Object.assign(newObj, { [key]: obj[key] }), {})
Raw
pick-es2017.js
Object.entries(obj)
.filter(([key]) => ['whitelisted', 'keys'].includes(key))
.reduce((obj, [key, val]) => Object.assign(obj, { [key]: val }), {});
Raw
pick-es2019.js
Object.fromEntries(
Object.entries(obj)
.filter(([key]) => ['whitelisted', 'keys'].includes(key))
);
@ajitsinghkamal
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ajitsinghkamal commented Jan 20, 2022 •
edited
Loading

Another solution to pick

const pick = <T extends object, K extends keyof T>(
    whitelisted: K[],
    target: T,
    defaultValue?: any
) =>
    Object.fromEntries(
        whitelisted.map((key) =>
            [ key, key in target ? target[key] : defaultValue ]
        )
    );

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