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equal.js

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const obj1 = {

a: '1',

b: 'this is the letter b',

f: {

foo: 'what is a foo anyway',

bar: [1, 5, '3', 4]

}

};

const obj2 = {

a: 1,

b: 'this is the letter b',

f: {

foo: 'what is a foo anyway',

bar: [1, 5, 3, 4]

}

};

function equal(a, b, mode) {

const eq = mode === 'strict' ? a === b : a == b;

if (eq) {

return true;

}

if (a && b &&

typeof a === 'object' &&

typeof b === 'object' &&

Object.keys(a).length === Object.keys(b).length) {

for (const key of Object.keys(a)) {

if (!b.hasOwnProperty(key) || !equal(a[key], b[key], mode)) {

return false;

}

}

return true;

}

return false;

};

console.log('objects are equal: ' + equal(obj1, obj2));

console.log('objects are strictly equal: ' + equal(obj1, obj2, 'strict'));