js if var is undefined code example
Example 1: js if not undefined
if (typeof myVar !== "undefined") {
console.log("myVar is DEFINED");
}
Example 2: check if variable is undefined or null jquery
if (variable == null) {
}
Example 3: javascript check if undefined or null
if (myVar) {
}
Example 4: undefined value check in javascript
function divisors(integer) {
let i, flag = true;
let arr=[];
for(i = 2; i <= integer - 1; i++) {
if (integer % i == 0) {
flag = false;
arr.push(i)
}
}
if (flag == true)
console.log(integer + " is prime");
else
console.log(arr)
}
console.log(divisors(15))