How Can I Add Days to a Date in JavaScript?

Adding Days to Dates in JavaScript

Many programming languages, such as C#, offer a convenient method like AddDay() to manipulate dates. JavaScript, however, lacks a similar built-in function. This article will provide a custom solution to add days to a Date object in JavaScript.

Creating a Custom Function

To fill this gap, you can create your own function using the following code snippet:

Date.prototype.addDays = function(days) {
    var date = new Date(this.valueOf());
    date.setDate(date.getDate() + days);
    return date;
}

Usage

To use this custom function, simply call the addDays() method on a Date object. For example:

var date = new Date();

console.log(date.addDays(5));

This will output a new Date object representing the date 5 days after the original date.

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