javascript check if null code example

Example 1: javascript not null

if (variable !== null) {
  console.log("Var is NOT null");
}

Example 2: check if variable is undefined or null jquery

if (variable == null) {
    // variable is either null or undefined
}

Example 3: javascript check if null

if (variable === null) { //Executes only if variable is null but not undefined
  //Code here
}

if (variable == null) { //Executes if variable is null OR undefined
  //Code here
}

Example 4: javascript check for null variables

var myVar=null;

if(myVar === null){
    //I am null;
}

if (typeof myVar === 'undefined'){
    //myVar is undefined
}

Example 5: js check null

if (Var === null) { 
//code goes here
}

Example 6: javascript null check

if (Var === null) { 
//code goes here
}