Function: isXML()

isXML(string): boolean

Tell whether a string is a well-formed XML document: one root element, every tag closed and nested properly, with an optional XML declaration, comments and processing instructions; the spaces around the document are allowed. It is not validated against a schema or a DTD. An HTML5 page with void elements (<br>) is not well-formed XML, and neither is a fragment with several roots (<a/><b/>).

Parameters

string

string

The string to test; a value which is not a string gives false.

Returns

boolean

true when the string is well-formed XML, false otherwise (an empty string included).

Example

import {isXML} from 'lakutata/utils'

console.log(isXML('<?xml version="1.0"?><note><to>Ann</to></note>'), isXML('<a><b></a>'), isXML('Hello'))
//true false false