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Object.entries()

Object.entries()

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Temitope Ayodele
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Object.entries() is used for listing all key-value pairs in an object. It accepts an object as a argument, and returns an array enumerating the key-value pairs of an object.

const obj = { 
  1: 'Israel', 
  2: 'Temi', 
  3: 'Miro' 
};
console.log(Object.entries(obj))

//Expected result: [ ["1", "Israel"], ["2", "Temi"], ["3", "Ayo"]]

Another example:

const obj1 = {
  a: 'Hello',
  b: 28
};

for (let [key, value] of Object.entries(obj1)) {
  console.log(`${key}: ${value}`);
}

//Expected result: 
// "a: Hello"
// "b: 28"

If the argument passed is not an object, it causes TypeError, If the key passed in the argument is not in the range of the property[key, value] pair, it causes RangeError.

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