Why my function in Javascript is not working?

Question

I am trying differents methods to implement a function, but one o them isn't working. Are this syntax correct?:

function funcao2()
        {
            alert('Tudo bem?');
        }funcao2();

I have a 'self invoking function', an 'anonymous function' and a 'function attributed to a variable', but the second aren't working. See the code:

    //Função de auto-invocação anônima ou função recursiva anônima
    (function(){
        alert('Oi');
    })();
    //Função anônima
    document.onload = function(){
        alert('Página carregada');
    };
    //Atribuir função a uma variável e executá-la em seguida
    var funcao = function(){
        alert('Oi novamente');
    }; funcao();

document.onload should be window.onload, document has the onreadystatechange event, the window loads — Elias Van Ootegem
– Elias Van Ootegem, Commented Aug 30, 2012 at 14:04
ok, thanks :). Are this syntax right, or I need to use ";" after closing the block?: function funcao2() { alert('Tudo bem?'); }funcao2(); — user1628488
– user1628488, Commented Aug 30, 2012 at 14:07
@EliasVanOotegem throw that up as an answer before someone poaches it! +1 — lbstr
– lbstr, Commented Aug 30, 2012 at 14:08
The semi-color(;) is optional, but in the last case (fucao) it's preferable to separate the function definition and the actual call with a semi-colon. — Elias Van Ootegem
– Elias Van Ootegem, Commented Aug 30, 2012 at 14:20

Elias Van Ootegem · Accepted Answer · 2012-08-30 14:15:32Z

2

Commented this, seems to be what the OP wanted to know, so posting it as an answer:

document.onload should be window.onload, document has the onreadystatechange event, the window loads

document.onreadystatechange = function(e)
{
    if (this.readyState === 4 && this.status === 200)
    {
        //only now, the document is loaded
        return;
    }
    //do stuff on readyState 1,2,3... <-- usefull when loading is likely to fail
}

answered Aug 30, 2012 at 14:15

Elias Van Ootegem

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