ttern: /((?:\b|\s|^)(?!(?:as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)(?![$\w\xA0-\uFFFF]))(?:(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*\s*)\(\s*|\]\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*\{)/,
			lookbehind: true,
			inside: Prism.languages.javascript
		}
	],
	'constant': /\b[A-Z](?:[A-Z_]|\dx?)*\b/
});

Prism.languages.insertBefore('javascript', 'string', {
	'hashbang': {
		pattern: /^#!.*/,
		greedy: true,
		alias: 'comment'
	},
	'template-string': {
		pattern: /`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,
		greedy: true,
		inside: {
			'template-punctuation': {
				pattern: /^`|`$/,
				alias: 'string'
			},
			'interpolation': {
				pattern: /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,
				lookbehind: true,
				inside: {
					'interpolation-punctuation': {
						pattern: /^\$\{|\}$/,
						alias: 'punctuation'
					},
					rest: Prism.languages.javascript
				}
			},
			'string': /[\s\S]+/
		}
	},
	'string-property': {
		pattern: /((?:^|[,{])[ \t]*)(["'])(?:\\(?:\r\n|[\s\S])|(?!\2)[^\\\r\n])*\2(?=\s*:)/m,
		lookbehind: true,
		greedy: true,
		alias: 'property'
	}
});

Prism.languages.insertBefore('javascript', 'operator', {
	'literal-property': {
		pattern: /((?:^|[,{])[ \t]*)(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*:)/m,
		lookbehind: true,
		alias: 'property'
	},
});

if (Prism.languages.markup) {
	Prism.languages.markup.tag.addInlined('script', 'javascript');

	// add attribute support for all DOM events.
	// https://developer.mozilla.org/en-US/docs/Web/Events#Standard_events
	Prism.languages.markup.tag.addAttribute(
		/on(?:abort|blur|change|click|composition(?:end|start|update)|dblclick|error|focus(?:in|out)?|key(?:down|up)|load|mouse(?:down|enter|leave|move|out|over|up)|reset|resize|scroll|select|slotchange|submit|unload|wheel)/.source,
		'javascript'
	);
}

Prism.languages.js = Prism.languages.javascript;
