Answers for "es6 check variable undefined"

0

nodejs check if variable is undefined

if ( typeof query !== 'undefined' && query )
{
  //do stuff if query is defined and not null
}
else
{

}
Posted by: Guest on December-25-2020
-1

undefined javascript check

if(undefinedElement === null) {
	console.log("Element is undefined");
}
Posted by: Guest on March-30-2020

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