Write a JavaScript function to classify a triangle as equilateral $($all sides equal$),$ isosceles $($any two sides equal$)$ or scalene $($all sides different lengths$).$ To make the code clearer, you must use complex conditions. This function has been partially completed for you. Complete the complex conditions so that the appropriate classification is in the variable answer.

function classifyTriangle $()\{$

$//$Declare variables

var a$,$ b$,$ c$,$ answer;

$//$Read inputs $-$ three sides $a,b,c$

$a=$ parseFloat $($document$.$getElementById $(\text{'}$side$1\text{'}).$ value$)$;

b $=$ parsefloat $($document$.$getelementById $(\text{'}$side$2\text{'}).$ value$)$;

$c=$ parsefloat $($document$.$getElementById$(\text{'}$side$3\text{'}).$ value$)$;

$//$Process $-$ find correct classification and put it in "answer"

$//$Equilateral case first: COMPLETE

if $($

answer $=$ 'Equilateral';

$\}$

$//$Scalene case next: coMPLETE

else if $($

answer $=$ 'Scalene';

$\}$

$//$Everything left has to be Isosceles case:

else $\{$

answer $=$ 'Isosceles';

$\}$

$//$Display output

document.getElementById $("$output$\text{'}).$ innerHTML $=$

'Classification $=$ 'tanswer;