I have been getting syntax error. Missing exponent everytime I run my Javascript.

<script type="text/javascript">

function randomendtime(len) {
 var chars = ["10.202", "11.121", "12.101", "13.111", "14.121", "15.097", "18.142", "20.926"];
 return chars[ Math.floor(Math.random() * chars.length)];
}

var 2et = randomendtime(1);

document.write('<script type="text/javascript" src="/' + 2et + '"><\/script>');

</script>

I have been getting syntax error. Missing exponent everytime I run my Javascript.

<script type="text/javascript">

function randomendtime(len) {
 var chars = ["10.202", "11.121", "12.101", "13.111", "14.121", "15.097", "18.142", "20.926"];
 return chars[ Math.floor(Math.random() * chars.length)];
}

var 2et = randomendtime(1);

document.write('<script type="text/javascript" src="http://www.example./' + 2et + '"><\/script>');

</script>

• javascript

Share Improve this question Follow edited Nov 8, 2019 at 11:59 Mosè Raguzzini 15.9k11 gold badge3434 silver badges4545 bronze badges asked Oct 16, 2013 at 4:59 user2885003user2885003 5311 silver badge33 bronze badges 1

• why is your variable starting with 2... – HIRA THAKUR Commented Oct 16, 2013 at 5:00

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2 Answers 2

Sorted by: Reset to default 10

Your variable name 2et is invalid; JavaScript variables names can contain numbers, but may not start with them.

The reason you are getting an error about exponents is because JavaScript number literals may be written in scientific notation (e.g. 2e3, or 2000). Whichever JavaScript engine was running this code parsed the variable name as a malformed number literal, hence the error.

change the variable name which you have given "2et" and give string as a variable name it will work....