I`m using phpstorm with protactor for angular and for some reason the IDE doesnt recognize some
functions. but the functions is working fine when i`m running the test.
for example:
element(by.buttonText('toggle')).click();
expect(element(by.css('.net-fade')).getText()).
toEqual('something');
})
The IDE tell me that the method by.css is "unresolved function or method".
Someone know how to fix it?
I'm not familiar with PHPStorm, so this won't be a full-answer:
But I'd say the basic problem is that Protractor binary auto-inserts protractor.js and other dependencies into the environment for you. This is what gives you by (along with other helper variables browser, element, etc).
You may want to insert protractor.js yourself, you can find it in
node_modules/protractor/lib/protractor.js
(And again, I am unsure of how PHPStorm includes files, but you might want to only manually add protractor.js if it is not running in test mode. And to this end, you could set flag in protractors onPrepare() function to check against).
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I'm having trouble setting up a JavaScript project in my VSCode.
What I currently have technically "works", but it wont do proper syntax highlighting and syntax error detection. For example, the following code on a fresh file won't show any error:
woosh();
The thing is, there is no function called woosh anywhere (not even in other files). The error is caught only when I try to actually run this code. Does anyone know what I might have done wrong?
VSCode does not highlight JS mistakes like this, because it's not a syntax error; The code above would cause a runtime error.
Install addons like eslint, jshint. If that doesn't work then I recommend learning typescript. It's a superset of javascript with strict type checking. It helps us to catch silly bugs like these.
I just lost 1.5h of time trying to debug a piece of code I wrote only to find I had mistyped clickData.menuItemID instead of clickData.menuItemId
Is there a plugin or better IDE that automatically can check that I've named my variables or properties etc like this in the proper camelcase? I find this type of issue hinders me often and I can't always see the mistake when I'm trying to debug it.
Actually I've two questions, because the common workaround for my initial problem does not work :)
I'm trying to build an Emscripten based library which calls JavaScript functions as described here: https://emscripten.org/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html#implement-a-c-api-in-javascript
Simply put I just implement my C/C++ code against a C-Function, implement that function in a .js file and 'link' that file using --js-library.
Basically things are working for me except with version EMSDK version 1.38.12 I got a warning when linking the final library:
warning: undefined symbol: foo_
.. which I don't understand but I could just ignore it. In newer versions of EMSDK the behavior changed and the warnings become errors.
Searching for this error you find you can just add -s ERROR_ON_UNDEFINED_SYMBOLS=0 when linking, but this doesn't work (for me) - I still get this error despite I can see this option being added to the linker.
So my questions are:
how do I make -s ERROR_ON_UNDEFINED_SYMBOLS=0 work for me?
and why do I get this warning in the first place? how do I get rid of it?
Sorry I don't know if this is a stupid question or not but I cannot find the answer.
I have a pure function in javascript which check if the argument is a correct URL
isValidUrl(url) {
const protocol = new URL(url).protocol;
...
}
The code runs fine in browser. But I would like to write a test using mocha for it. And mocha complains "ReferenceError: URL is not defined". So does that mean server side JS does not have URL class? Do I need to use something like headless browser to test it?
Thanks a lot.
Node and friends, where your tests are likely running, implement the ECMAScript (JS) spec. The URL class is from this WhatWG spec. The JS spec does not have any reference to a URL class, which explains your immediate problem.
Node also implements its own CommonJS-based modules, one of which is a URL module. It doesn't appear to have the same interface, however.
Using Mocha with Karma to run tests in a headless browser, like PhantomJS, is probably a better solution. You'll get an accurate, if slightly out of date, version of chromium to test within. You can also set Karma up to use other browsers, if they are available on the test machine.
Rails will not let me run JS code, I have these errors
1)
2)
whenever you add JS code, the errors appear.
Some idea why this happening?
Just because you're getting error highlights in your IDE, doesn't necessarily mean your code is wrong. Try running your server, navigate to your site from your browser, and check the developer console. Do you still see javascript errors?
This warning (it is not an error) is being displayed because your IDE thinks that the variable $ is not defined in your code. However, it is not able to find out that $ is a global variable defined in the jQuery library, imported a few lines before.
The IDE is just saying that the presence of that variable is not guaranteed unless you properly import the needed libraries to make it exist (jQuery in this case). Your code should work properly. In order to identify errors in your javascript code, I would recommend you to use the built in console in the web browser.