is there a way to run a JQuery function even the DOMs are not yet loaded

im thinking if there is a way to ru开发者_开发问答n a jquery function like $.post even if the DOM's are not yet loaded..

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Yes, if you place your script after jQuery has been loaded, you are free to execute any jQuery functions. However, DOM manipulation will, of course, be unreliable if you're outside of a $(document).ready() block or similar.

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Yes you can, once jquery has loaded.

function checkJquery(){
    if(typeof($)==undefined){
        setTimeout(checkJquery,500);
    } else {
        start();
    }
}
setTimeout(checkJquery,500);

Then write your code in start().