Underscore.js _.isFunction() Function
The _.isFunction() function is used to check whether the given object is function or not. It returns a Boolean value True if the given object is a function and returns False otherwise.
Syntax:
_.isFunction( object )
Parameters: This function accepts single parameter as mentioned above and described below:
- object: It contains the value of object that need to be check whether the object is function or not.
Return Value: It returns True if the given object is function and False otherwise.
Example 1:
<!DOCTYPE html>
< html >
< head >
< script type = "text/javascript"
src =
</ script >
</ head >
< body >
< script type = "text/javascript" >
console.log(_.isFunction(function (element) {
return element % 2 != 0;
}));
console.log(_.isFunction(function (n) {
return n < 2 ? n : fib(n - 1) + fib(n - 2);
}));
</script>
</ body >
</ html >
|
Output:
Example 2:
<!DOCTYPE html>
< html >
< head >
< script type = "text/javascript"
src =
</ script >
</ head >
< body >
< script type = "text/javascript" >
console.log(_.isFunction(alert));
console.log(_.isFunction(console.log));
console.log(_.isFunction('GeeksgorGeeks'));
</ script >
</ body >
</ html >
|
Output:
Last Updated :
01 Aug, 2023
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