![](data:image/svg+xml;charset=utf-8,<svg height="240" width="240" xmlns="http://www.w3.org/2000/svg" version="1.1"/>)
If you want to check if a function exists or not before calling, here’s how to do it
if(typeof window.functionName == 'function') {
functionName (arg1, arg2);
}
It returns a boolean value indicating if the function exists or not.
Tag: reflection
If you want to check if a function exists or not before calling, here’s how to do it
if(typeof window.functionName == 'function') {
functionName (arg1, arg2);
}
It returns a boolean value indicating if the function exists or not.