How to filter the list by the presence of numbers in the beginning of the line?

Question

How to filter the list by the presence of numbers in the beginning of the line?

Make the filter list on the first characters. With all the letters OK, but there is a problem with numbers.
How to make pressing the button "1" (see screenshot) displayed only rows that begin with the digit (0 to 9).

code

jQuery

Era_Hane27 asked April 19th 20 at 12:34

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More answers about "How to filter the list by the presence of numbers in the beginning of the line?"

1 answer

marina_Gorczany answered on · Accepted Answer · 2020-04-19T10:36:54.264Z

$(document).on('click', '.testa', function() {
 const reg = RegExp(`^[${$(this).text()}]`, 'i');
 $('.red a').hide().filter((i, n) => reg.test($(n).text())).show();
$(this).addClass('active').siblings().removeClass('active');
});