How to add JavaScript code into existing iFrame using jQuery?

Question

I want to add a JavaScript snippet into an existing iFrame in the page using jQuery. I have the following code...

Code:

content = \"

        

Answer 1

function putScriptInIframes(script, scriptId) {

   var $iframes = $('iframe');
   $iframes.each(function () {
        var thisDoc = this.contentWindow.document;
        if ( ! thisDoc.getElementById(scriptID)) {
            var scriptObj = thisDoc.createElement("script");
            scriptObj.type = "text/javascript";
            scriptObj.id = scriptId;
            scriptObj.innerHTML = script;
            thisDoc.body.appendChild(scriptObj);
        }
    });
}

This was the simplest way I could make it work.