tags-returns

Syntax

@returns [{type}] [description]

Overview

The @returns tag documents the value that a function returns.

If you are documenting a generator function, use the @yields tag instead of this tag.

Examples

• Return value with a type

/**
 * Returns the sum of a and b
 * @param {number} a
 * @param {number} b
 * @returns {number}
 */
function sum(a, b) {
    return a + b;
}

• Return value with a type and description

/**
 * Returns the sum of a and b
 * @param {number} a
 * @param {number} b
 * @returns {number} Sum of a and b
 */
function sum(a, b) {
    return a + b;
}

• Return value with multiple types

/**
 * Returns the sum of a and b
 * @param {number} a
 * @param {number} b
 * @param {boolean} retArr If set to true, the function will return an array
 * @returns {(number|Array)} Sum of a and b or an array that contains a, b and the sum of a and b.
 */
function sum(a, b, retArr) {
    if (retArr) {
        return [a, b, a + b];
    }
    return a + b;
}

• Returns a promise

/**
 * Returns the sum of a and b
 * @param {number} a
 * @param {number} b
 * @returns {Promise<number>} Promise object represents the sum of a and b
 */
function sumAsync(a, b) {
    return new Promise(function(resolve, reject) {
        resolve(a + b);
    });
}