How to run css line in Javascript [duplicate]

Question

I need to make a dynamic row counter for my table. I do this with a span but how do i run my javascript function on it so it prints the number out?

html;

<span id="Tellen"></span>

Javascript;

function tellen(){
    var rowCount = document.getElementById('tableID').rows.length;
}

Could someone help me into the right direction, much appreciated.

w3schools.com/jsref/tryit.asp?filename=tryjsref_table_insertrow — Sachin Shah
– Sachin Shah, Commented Mar 22, 2019 at 10:30

Rajiv · Accepted Answer · 2019-03-22 10:39:16Z

2

You didn't assign output to html span

Try this Tag :

<span id="Tellen"></span>

JS

function tellen(){
    var rowCount = document.getElementById('tableID').rows.length;
    document.getElementById('Tellen').innerText = rowCount
}

But you need some event to call tellen() .. It can be onClick of button or something like this

answered Mar 22, 2019 at 10:34

Rajiv

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