delete() in javascript

 1) delete() is not used much in javascript as it gives empty hole

// .shift() method to remove elements from the beginning of an Array

// The length of the Array will remain same before and after delete

// 0 1 2 3 4

const a = ['a', 'b', 'c', '10', 'd'];

console.log('Before delete :', a)

delete a[2];

console.log('After delete :', a)

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