typescript check if value is null code example
Example 1: 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 2: typescript null and undefined check
if(!!someValue)
Example 3: how to check is null or empty in typescript
if(typeof propertyValue!='undefined' && propertyValue){
//execute code here
}
Example 4: typescript null and undefined check
let x = foo?.bar.baz();