Javascript HTML5 FileAPI: Uncaught ReferenceError: utils is not defined - javascript

I can't find this anywhere, and no one else has this problem that I know of.
I'm using the code straight off http://www.w3.org/TR/FileAPI/ and I can't get it to work at all.
Here's the jsfiddle I've been using to test it out http://jsfiddle.net/4k5xa/

The example is not a complete, working example. It calls hypothetical library functions. You will need to implement them or not use them.

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Unable to execute karate script() method

I am trying to migrate one of selenium test to karate, while doing this I am using script() method defined in documentation which is used in karate for evaluating the given string as JavaScript within the browser but I am getting this
driver.executeScript("sauce:job-result=passed");
Also Sharing my feature file which getting failed:
Also Even I tried calling below statement in my script but still getting the same error
* script("console.log('hello world')")
I am using testImplementation("com.intuit.karate:karate-core:1.2.0.RC1") version with gatling
First - try version 1.2.0.RC6 that has some fixes for the console.log() issue.
I also must say that sauce:job-result=passed does not look like valid JavaScript to me. Please take some time to read the docs: https://github.com/karatelabs/karate/tree/master/karate-core#karate-vs-the-browser
If still stuck, follow this process. That is the only way to replicate and for us to determine what fixes we need to make (if any): https://github.com/karatelabs/karate/wiki/How-to-Submit-an-Issue
See this answer for ideas on how to troubleshoot things at your end: https://stackoverflow.com/a/71952132/143475

Jasmine spy "expect(xxx).notToHaveBeenCalled()

With great thanks to those that so swiftly rescued me. The essence of the problem was that I failed to realize I should be looking in documentation for "matchers", and looking in "expect" was not going to solve my problem.
I'm working with Jasmine 3.0 (and very new to it!) and trying to verify that a spy sees zero calls to a target under particular conditions. I thought I might use the count() behavior for this, but I'm struggling to work out what syntax I should use.
I've tried
spyOn(target, 'action').and.callThrough();
target.triggeringAction();
expect(target.action).count().toBe(0);
But Jasmine reports TypeError: expect(...).count is not a function.
I don't see any expect(...).toNotHaveBeenCalled() and I'm not sure where to look next.
You could use expect(target.action).toHaveBeenCalledTimes(0);
This could work as well expect(target.action).not.toHaveBeenCalled();

ContentTools tutorial: undefined element on function parameters

I am testing the wysiwyg editor ContentTools and I have to admit is fantastic. Unfortunately the tutorials are "dry" and all with coffeescript (which might be an advantage for who knows it). My problem right now is that the tutorials are not 100% bugfree (as the author said somewhere) and don't provide an archive with them working.
So right now I'm stuck with one of the basics: add a new tool to the toolbar.
The error I get is:
content-tools.js:10516 Uncaught ReferenceError: element is not defined
which points to the trivial
TimeTool.getDatetime(element, selection)(function() {
The time-tool.coffee I created is here and the tutorial is here.
One of the big drawbacks of ContentTools is that the additional tools need to be compiled in the library (at least that's what I understood), so the jsfiddle can't link to a CDN-ed version of ContentTools.
How could it be possible to get an object not defined on the parameters of a function?
I have had success with changing
#getDatetime(element, selection) ->
to
#getDatetime: (element, selection) ->
This makes it in the same syntax as the apply function - and actually works.. :O

how can i use require(""); in javascript

i want to use a plugin in Firefox that it is in this. in this plugin tutorial use require function, and it is: require("sdk/preferences/service");
but i get error that require is not defined. so i search and download requireJS. but when attach this i get error module name sdk/preference/service has not been loaded yet from context. use require([]).
so i use require(["sdk/preferences/service"],function(pref){}); but in function i can't use pref and get error script error sdk/preferences/service
so how can i use require function?
or a HTML example that use require function and it works correctly?
The code you found was for use in a Firefox extension. You’re not writing a Firefox extension, you’re using a web page, so you can’t use that code. There’s no drop-in replacement; you’ll have to find something else.

Can't Diagnose jQuery Error: "Object [object Object] has no method"

I'm working on a Wordpress theme and right now I'm trying to get MediaElement to display audio files on posts.
jQuery is loading fine (tested with jQuery alerts) but for some reason MediaElement doesn't want to work. I get the error
'Object [object Object] has no method 'mediaelementplayer','
and although I've double checked everything I just can't figure out what's wrong. If you need a live demo of the problem, check it out here: http://firstpersontheater.net/video/podcast/painkiller-already-episode-78 (please don't judge the theme, I'm working on getting core functionality done first and haven't really started designing yet, haha).
This worked for me with the WordPress plugin:
mejs.$('.mejs-player').mediaelementplayer();
Had this problem yesterday as well.
MediaElement.js actually includes several different files in the download package. In order to get the full-featured video player you have to include the "mediaelement-and-player.js" file, not the "mediaelement.js" file, which is just the library.
I encountered this same issue.
While I was unable to isolate exactly why this error occurs with the WordPress plug-in implementation of MediaElement.js, I was able to move past it by using the JavaScript of MediaElement only.
I modified the PHP to output the relevant audio and video HTML tags without ID's, and without the script that calls them. I also removed the aspects of the plug-in for cueing scripts, instead linking them myself in my theme.
I then had success calling MediaElement normally using jQuery.
Well what library are you using that adds the api mediaelementplayer? Looks like that plugin either isnt loaded correctly or you are using the API incorrectly.
Quick answer:
You trying to to call a method that does not exits.
var o = {a = 1, b = 2};
o.someFunctionIThinkShoudExist();
It would be nice if it showed what the name of the function you were trying to call was. This happened to me last week and I resolved it by making sure I had linked to the correct JavaScript files.
What you can check is that you are only linking to the libraries you are using, like jQuery, only once. If you link to jQuery and a jQuery extention, then linking to jQuery again will unbind the extension. Causing the above error when you try to call the function you think should exits.

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