Addition with JS Variable within HTML Element

Question

So I have a variable that I am declaring at the top of the JS document:

var poll_answer =  2;

However later on in the code, I am trying to append a new element with jQuery and would like to make use of this variable albeit adding '1' each time it is appended.

This is the main function:

function add_poll_answer_add() {
jQuery('#poll_answers').append('<tr id="poll-answer-" Answer' + poll_answer+1 + '>
    }

By default there are two 'answers' and hence the reason for setting the var at 2. But whenever someone appends a new element through a button, I would like them to see a new <tr> with the content Answer 2, 3, 4 etc. as they add more answers.

I get no errors in the debug console.

Hope this makes sense.

... Answer' + (poll_answer++) + '> ... you need to increment the counter variable itself, not just add to a static value. — Emissary
– Emissary, Commented Feb 19, 2016 at 8:31
more like (++poll_answer) to get the number the question was trying to get — Jaromanda X
– Jaromanda X, Commented Feb 19, 2016 at 8:35

S. Nadezhnyy · Accepted Answer · 2016-02-19 08:32:10Z

2

you should define your code this way:

function add_poll_answer_add() {
    poll_answer = poll_answer+1;
    jQuery('#poll_answers').append('<tr id="poll-answer-" Answer' + poll + '>
}

answered Feb 19, 2016 at 8:32

S. Nadezhnyy

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3 Comments

WitVault Over a year ago

is There a typo poll should be poll_answer?

dwinnbrown Over a year ago

yes I corrected the original question because it was a typo

dwinnbrown Over a year ago

thanks this works perfectly and is nice and simple to understand.

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