If-else-if statements Conditional in javascript

Dear LearVern Leaders,
My if-else-if statements part and Conditional in javaScript does not Run in browser please help me .
Please check my cods links and reply.

Thank you for support me.

if (condition ) {

else if (condition ) {

else {


( if else ) nahi ( else if ) hota h

if (a%2==0 ) {

} else {


first img ka pura code glt h

video mai yhi hai.

video ka link bhejo . is code editor m error show nahi hote kiya,
agr nahi to aap visual studio code download kro
ye extension bhi visual studio code m Install kr lo

is m aapko errors ka bhi pta chalega