javascript check if function exists
//check if sayHello() function exists
if (typeof sayHello === "function") {
// This function exists
}
javascript check if function exists
//check if sayHello() function exists
if (typeof sayHello === "function") {
// This function exists
}
check if function exists javascript
if (typeof payment === "function")
{
// Do something
}
function exists javascript
How to check if function exists in JavaScript?
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