How to tell if a plugin is active

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1

I'm trying to make my website just with a JS file and in it I would like to know if a particular plugin is loaded since for example the carcel I only load in a page.

How do I test if the plugin is loaded to avoid getting errors on the console?

    
asked by anonymous 22.12.2016 / 19:07

1 answer

2

You can create a recursive function that checks to see if certain globals are defined. If they are not, it calls itself with a wait time.

An example would look like this: 

function ready(cb) {
    if (typeof window.meuPlugin == 'undefined') return setTimeout(ready.bind(null, cb), 200);
    else cb();
}

ready(function() { // esta callback será corrida quando a global estiver defenida
    alert('Tudo está carregado!');
});
<script>
    setTimeout(function() {
        // para simular o carregamento
        window.meuPlugin = function() {};
    }, 2000)
</script>
    
22.12.2016 / 19:12
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