Write code for promise and explain. Write html form from scratch for js. Coding questions related to array

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Answering coding questions related to promises, HTML forms, and arrays.

To create a promise in JavaScript, use the Promise constructor and pass in a function with resolve and reject parameters.
Example: const myPromise = new Promise((resolve, reject) => { // code here });
To create an HTML form in JavaScript, use the document.createElement method to create form, input, and button elements.
Example: const form = document.createElement('form'); const input = document.createElement('input'); const button = document.createElement('button');
To work with arrays in JavaScript, use methods like push, pop, shift, unshift, splice, slice, map, filter, reduce, etc.
Example: const myArray = ['apple', 'banana', 'orange']; myArray.push('grape');

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