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Prism.languages.javascript = Prism.languages.extend('clike', {
'keyword': /\b(?: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|var|void|while|with|yield)\b/,
'number': /\b-?(?:0[xX][\dA-Fa-f]+|0[bB][01]+|0[oO][0-7]+|\d*\.?\d+(?:[Ee][+-]?\d+)?|NaN|Infinity)\b/,
// Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
'function': /[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*(?=\s*\()/i,
'operator': /-[-=]?|\+[+=]?|!=?=?|<<?=?|>>?>?=?|=(?:==?|>)?|&[&=]?|\|[|=]?|\*\*?=?|\/=?|~|\^=?|%=?|\?|\.{3}/
});
Prism.languages.insertBefore('javascript', 'keyword', {
'regex': {
pattern: /(^|[^/])\/(?!\/)(\[[^\]\r\n]+]|\\.|[^/\\\[\r\n])+\/[gimyu]{0,5}(?=\s*($|[\r\n,.;})]))/,
lookbehind: true,
greedy: true
},
// This must be declared before keyword because we use "function" inside the look-forward
'function-variable': {
pattern: /[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*(?=\s*=\s*(?:function\b|(?:\([^()]*\)|[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)\s*=>))/i,
alias: 'function'
}
});
Prism.languages.insertBefore('javascript', 'string', {
'template-string': {
pattern: /`(?:\\[\s\S]|[^\\`])*`/,
greedy: true,
inside: {
'interpolation': {
pattern: /\$\{[^}]+\}/,
inside: {
'interpolation-punctuation': {
pattern: /^\$\{|\}$/,
alias: 'punctuation'
},
rest: Prism.languages.javascript
}
},
'string': /[\s\S]+/
}
}
});
if (Prism.languages.markup) {
Prism.languages.insertBefore('markup', 'tag', {
'script': {
pattern: /(<script[\s\S]*?>)[\s\S]*?(?=<\/script>)/i,
lookbehind: true,
inside: Prism.languages.javascript,
alias: 'language-javascript'
}
});
}
Prism.languages.js = Prism.languages.javascript;
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