Javascript

12 cards·by pavanrogue

Various to decalre a variable

var, let, const

Declare 3 variables at once

var a=10; b=20; c=30;

Variable names must start

Letter, $, _

Variable should not start with

Number

if (condition) { // the body }

If else

answerif (condition) { // block } else { // block }

If else if

if (condition1) { // code block 1 } else if (condition2){ // code block 2 } else { // code block 3 }

Nested if...Else

if (condition) { if (condition) { // block1 } else { // block 2 } else { // block 3 }

For loop

for(initialexpression; condition; updateexpression) { // body }

While loop

while (condition) { //body }

Do while loop

do { //body } while (condition)

Var vs let vs const

answer