The $ (dollar sign) of jQuery is a function , however you can access its methods as if it were an object through the "." . Could someone explain, in what way I could do this in a function func , for example?
In a more enlightening way, I intend to use func () as well as func.each () for example.
In JavaScript functions are special types of objects, and can have properties (including other functions) like any object:
function funcao(x) {
console.log('função chamada');
}
funcao.propriedade = 10;
funcao.metodo = function() { console.log('método chamado') }
// Testes:
funcao();
console.log(funcao.propriedade);
funcao.metodo(); In jQuery, the thing is a bit more complex because all methods go in the prototype , the $ function is a constructor, and the library implements method-threading of the instances of this constructor. But in your case, perhaps the rice bean should be enough (please let me know if this is not enough).
You can store a function in a variable and use it to perform internal functions through an object, this algorithm implements Javascript Module Pattern .
var $fn = function() {
return {
alertar: alertar
}
function alertar(message){
alert(message);
}
}();
$fn.alertar("teste")
You can also implement a function through prototype :
var $fn = function () {
if (this instanceof $fn)
return this
return new $fn;
};
$fn.prototype = {
alertar: function (message) {
alert(message);
}
};
window.$ = $fn();