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regex - JavaScript regular expression "Nothing to repeat" error

I have this error while trying to get the tokens the code to make the lexical analysis for the Minic langauge !

document.writeln("1,2 3=()9$86,7".split(/,| |=|$|/));

document.writeln("<br>");
document.writeln("int sum ( int x , int y ) { int z = x + y ; }");
document.writeln("<br>");
document.writeln("int sum ( int x , int y ) { int z = x + y ; }".split(/,|*|-|+|=|<|>|!|&|,|/));

I get error on the debugger for the last line Uncaught SyntaxError: Invalid regular expression: Nothing to repeat !!

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You need to escape special characters:

/,|*|-|+|=|<|>|!|&|,|/

See what special characters need to be escaped:


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