formatHex

The formatHex() function Formats a hexadecimal color code string by adding a "#" prefix if it's missing and expanding short-form hex codes to long-form.

Parameters

Parameter	Type	Description
hex	String	The input hexadecimal color code to be formatted.
alt	String	The default color code to use if hex is invalid. This parameter is optional and set to #000000 by default.

Returns

• String: The formatted color code

Throws

• Error: If hex is not a string or alt is not a string

Example

const utils = require('utils-core.js');
const hex = "f00";
const formattedHex = utils.format.formatHex(hex);
console.log(formattedHex); 
// output: "#ff0000"

const utils = require('utils-core.js');
const hex = "00ff00";
const formattedHex = utils.format.formatHex(hex, "#000000");
console.log(formattedHex); 
// output: "#00ff00"