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Example

const foo = {
    bar: {
        baz: true
    }
}

dotObj('foo.bar.baz', foo); // true

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export const encodeQueryString = (params) => {
    const keys = Object.keys(params);
    const encode = (param) => {
        const value = params[param];
        const pair = [param];

        if (value) {
            pair.push(value);
        }

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Group By

Group items by the key returned in the callback.

const data = [
    { id: 'a' },
    { id: 'b' },
    { id: 'a' }
];

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Recursively clone an object.

Usage

const obj = {
    foo: 'bar'
}

cloneObj(obj);

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Checks if a given word is a palindrome.

Usage

const tests = ['hannah', 'anna', 'kayak', 'apple', 'mom', 'wow', 'rotator', 'radar']

tests.forEach((test) => {
    console.log('IS_PALINDROME', test, isPalindrome(test));
});

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module.exports = (data, size = 10) => {
    let chunk = [];
    
    return data.reduce((chunks, item, index) => {
        chunk.push(item);
        
        if (chunk.length >= size || index === data.length - 1) {
            chunks.push(chunk);
            chunk = [];
        }

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Password Entropy

Calculate the entropy of a password.

Usage

const passEnt = require('passEnt');

const H = passEnt('pswd'); // 18.801758872564367

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module.exports = (value) => {
	return value && typeof value.then === 'function' && typeof value.catch === 'function';
};

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const PERMISSION_WRITE = 'clipboard-write';

const canUseAsyncAPI = () => {
    return (
        navigator.clipboard &&
        navigator.clipboard.writeText &&
        navigator.permissions &&
        navigator.permissions.request
    );
};

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module.exports = (foreground, background) => {
    const l1 = Math.max(foreground, background);
    const l2 = Math.min(foreground, background);

    return (l1 + 0.05) / (l2 + 0.05);
};