1. Home
  2. Javascript

Check If Function Exists

Code examples

9
0

javascript check if function exists 

//check if sayHello() function exists
if (typeof sayHello === "function") { 
    // This function exists
}
3
0

check if function exists javascript 

if (typeof payment === "function")
{
  // Do something
}
2
0

js check if function exists 

if (typeof yourFunctionName == 'function') { 
  yourFunctionName(); 
}
0
0

Check If Function Exists 


const obj = {first: function() {console.log("ssss"); return "returns"} };


console.log(_.result(obj, "first"));
/*note that _.result() returns a value, so if your function doesn't return anything _.result() will return undefined*/

Similar pages

Similar pages with examples

check if function was defined wpf c#
exists a function like in javascript?
js call if exists
javascript if method exists
javascript check existence of function
typescript check is function exists on object
detect if function exists javascript
javascript check if function exists before calling it
Check If Function Exists

In other languages

This page is in other languages

Русский
..................................................................................................................
Ссылка
Italiano
..................................................................................................................
Link
Polski
..................................................................................................................
Link
Română
..................................................................................................................
Legătură
한국어
..................................................................................................................
링크
हिन्दी
..................................................................................................................
लिंक
Français
..................................................................................................................
Lien
Türk
..................................................................................................................
Atıf
Česk
..................................................................................................................
Odka
Português
..................................................................................................................
Referênci
ไทย
..................................................................................................................
เชื่อมโยง
中文
..................................................................................................................
链接
Español
..................................................................................................................
Referencia
Slovenský
..................................................................................................................
Odkaz
Балгарскі
..................................................................................................................
Спасылка
Íslensk
..................................................................................................................
Link

Popular in the category

Popular pages with examples in the category

add select option with jquery
append select2 option jquery
how to add options to select in jquery array
how to select element jquery
select document jquery
get system time jquery
how to print computer date time in jquery
ajax get time from timestamp
show time using jquery
show time with jquery
get current time with am in jquery
getting datetime in jquery
jquery extract time from datetime
date and month order for js new date
sort array of months
how to sort dates with day and month in javascript