js is function
if(typeof test === "function") {
console.log('test is a function');
}else {
console.log('test is not a function');
}js is function
if(typeof test === "function") {
console.log('test is a function');
}else {
console.log('test is not a function');
}is function javascript
// There are various ways to test if a variable is of function type
// typeof check
if(typeof test === "function"){
// do something with function
test()
}
// instanceof check
if(test instanceof Function){
// do something with function
test()
}
// call check
if(test?.call !== "undefined"){
test.call({}, arg1, arg2);
}Copyright © 2021 Codeinu
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