js if "not" null code example
Example: 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
}
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
}