access to static functions in classes js code example
Example 1: js class static function
class myClass{
constructor(){
this.myLocaleVariable=1;//this.varname in the constructer function makes a locale var
}
localfunction(){
return "im local unique to this variable";
}
static publicfunction(){
return "i can be called without an obj"
}
}
myClass.myPublicVariable = 0;
myClass.localfunction();//error
myClass.publicfunction();//"i can be called without an obj"
myClass.myLocaleVariable;//error
myClass.myPublicVariable;//0
var obj = new myClass;
obj.localfunction();//"im local unique to this variable"
obj.publicfunction();//error
obj.myLocaleVariable;//1
obj.myPublicVariable;//error
Example 2: get static methods of class javascript
class Hi {
constructor() {
console.log("hi");
}
my_method(){}
static my_static_method() {}
}
function getStaticMethods(cl) {
return Object.getOwnPropertyNames(cl)
}
console.log(getStaticMethods(Hi))
// => [ 'length', 'prototype', 'my_static_method', 'name' ]