You can generate a number sequence in JavaScript using fill and map method and store the values in Array.
JavaScript generate a number sequence Example
HTML example code generate array of sequential numbers in JavaScript.
1 2 3 4 5 6 7 8 9 10 11 12 13 |
<!DOCTYPE html> <html> <body> <script type="text/javascript"> function range(start, end) { return Array(end - start + 1).fill().map((_, idx) => start + idx) } var seqNumbers = range(9, 18); console.log(seqNumbers); </script> </body> </html> |
Output:

Make re-usable function
This function will work to generate a sequence of numbers in javascript.
Let’s see an example to generate a number in the sequence (series) with step 3 up to 8 numebrs.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 |
<!DOCTYPE html> <html> <body> <script type="text/javascript"> function makeArray(count, content) { var result = []; if(typeof content == "function") { for(var i = 0; i < count; i++) { result.push(content(i)); } } else { for(var i = 0; i < count; i++) { result.push(content); } } return result; } var myArray = makeArray(8, function(i) { return i * 3; }); console.log(myArray) </script> </body> </html> |
Output

Do comment if you have another example or doubts on this topic or codes.
Note: All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version