You can use the [`Cypress.config()`][1] command.

To get `baseUrl` value use `Cypress.config().baseUrl` or `Cypress.config(&#39;baseUrl&#39;)`.


  [1]: https://docs.cypress.io/api/cypress-api/config#Syntax

`cy.visit(&#39;/&#39;)` will visit the baseUrl if you have it defined in your `cypress.json`. ([Source](https://docs.cypress.io/api/commands/visit#Syntax))

I&#39;m struggling with centering a widget inside `listView`.

I tried this, but `Text(&#39;ABC&#39;)` is not centered vertically.
How can I achieve this?

    new Scaffold(
      appBar: new AppBar(),
      body: new ListView(
        padding: const EdgeInsets.all(20.0),
        children: [
          new Center(
            child: new Text(&#39;ABC&#39;)
          )
        ]
      )
    );

Flutter - How to center widget inside list view

It is mentioned on the ECMAScript standard [here][1] that :

&gt; ... These features are not considered part of the core ECMAScript
&gt; language. Programmers should not use or assume the existence of these
&gt; features and behaviours when writing new ECMAScript code. ECMAScript
&gt; implementations are discouraged from implementing these features
&gt; unless the implementation is part of a web browser or is required to
&gt; run the same legacy ECMAScript code that web browsers encounter.

There is also a red warning on MDN : [String.prototype.substr() MDN doc][2]

Does anyone know why (ECMAScript standard say that) programmers should not use or assume the existence of `String.prototype.substr` ?

  [1]: https://www.ecma-international.org/ecma-262/9.0/index.html#sec-additional-ecmascript-features-for-web-browsers
  [2]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substr

Why is String.prototype.substr() deprecated?

I&#39;m just starting to learn JavaScript and have been using Cypress to automate some regression tests. The test I writing currently is meant to verify link&#39;s text and href in a header and footer.

The issue I am having is that these tests need to be run across various environments and I cannot seem to access the baseUrl property set in the cypress.json in order to set the domain in my assertion.

In the script that follows it is the line `cy.get(&quot;a&quot;).should(&quot;have.attr&quot;, &quot;href&quot;, baseUrl + footerLink.link)`:

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-js --&gt;

        it.only(&quot;translates the content info section&quot;, () =&gt; {
          cy.wrap(orbitData).each(service =&gt; {
            cy.visit(service.name);
            cy.get(&quot;#orb-contentinfo &gt; div &gt; ul &gt; li&quot;).each(($li, index) =&gt; {
              let footerLink = service.links[index]
              cy.wrap($li).should(&quot;have.text&quot;, footerLink.linkText)
              .within(($li) =&gt; {
                cy.get(&quot;a&quot;).should(&quot;have.attr&quot;, &quot;href&quot;, baseUrl + footerLink.link)
              });
            });
          });
        });

&lt;!-- end snippet --&gt;

So far I have tried a number of things, I&#39;m a bit embarrassed to list them all, I&#39;m new to this so they&#39;re probably insane and definitely just guesses; amongst them were `Cypress.env(&#39;CYPRESS_baseUrl&#39;)` and `Cypress.baseUrl`. Each time it just comes back as `undefined`.

Or, if I&#39;m attacking this in completely the wrong way any guidance on a better way would be appreciated. I&#39;d be grateful for any help or guidance, thanks.

How to access the value of baseURL in Cypress

I'm just starting to learn JavaScript and have been using Cypress to automate some regression tests. The test I writing currently is meant to verify link's text and href in a header and footer.
The issue I am having is that these tests need to be run across various environments and I cannot seem to access the baseUrl property set in the cypress.json in order to set the domain in my assertion.
In the script that follows it is the line <code>cy.get("a").should("have.attr", "href", baseUrl + footerLink.link)</code>:


<pre><code class="hljs language-javascript"> it.only("translates the content info section", () => {
 cy.wrap(orbitData).each(service => {
 cy.visit(service.name);
 cy.get("#orb-contentinfo > div > ul > li").each(($li, index) => {
 let footerLink = service.links[index]
 cy.wrap($li).should("have.text", footerLink.linkText)
 .within(($li) => {
 cy.get("a").should("have.attr", "href", baseUrl + footerLink.link)
 });
 });
 });
 });
</code></pre>

So far I have tried a number of things, I'm a bit embarrassed to list them all, I'm new to this so they're probably insane and definitely just guesses; amongst them were <code>Cypress.env('CYPRESS_baseUrl')</code> and <code>Cypress.baseUrl</code>. Each time it just comes back as <code>undefined</code>.
Or, if I'm attacking this in completely the wrong way any guidance on a better way would be appreciated. I'd be grateful for any help or guidance, thanks.

While learning up Angular I just went through the various Angular-CLI commands to generate individual parts of Angular like &#39;Component&#39;, &#39;Services&#39;, &#39;Interface&#39;, &#39;Pipes&#39;, etc. 

**Generating Angular Items via Angular-CLI**

    ng g c components/comp-1 //generates component
    ng g s services/service-1 // generates service
    ng g i interfaces/interface-1 // generates interface

But, I am amazed why there is no generate command for &#39;**Model**&#39; (though Interface also does nearly some work -- but model is more powerful as can contain methods also in Class). 

Am I missing something or Team-Angular missed on generating a command for &#39;automatically generating Models&#39; -- as they are at the very core of OOPS Framework.

[![enter image description here][1]][1]

**Reference:**

https://www.npmjs.com/package/angular-cli


  [1]: https://i.stack.imgur.com/WczZ8.png

Why no Angular-CLI generate command for &#39;model&#39; in Angular Project?

I have this component:

    import React, { useState, useEffect } from &quot;react&quot;;
    import ReactDOM from &quot;react-dom&quot;;
    
    function App() {
      const [count, setCount] = useState(0);
      useEffect(() =&gt; {
        document.title = `You clicked ${count} times`;
      });
    
      return (
        &lt;div&gt;
          &lt;p&gt;You clicked {count} times&lt;/p&gt;
          &lt;button onClick={() =&gt; setCount(count + 1)}&gt;Click me&lt;/button&gt;
        &lt;/div&gt;
      );
    }
    
    export default App;

as I want to try out the new [React hooks](https://reactjs.org/docs/hooks-intro.html) proposal by installing `react@16.8.1` in my `package.json`, but I&#39;m getting an error:

    TypeError: dispatcher.useState is not a function

      2 | import ReactDOM from &quot;react-dom&quot;;
      3 | 
      4 | function App() {
    &gt; 5 |   const [count, setCount] = useState(0);
        |                                     ^
      6 |   useEffect(() =&gt; {
      7 |     document.title = `You clicked ${count} times`;
      8 |   });

What did I do wrong?

TypeError dispatcher.useState is not a function when using React Hooks

I&#39;m trying out the new [React Hooks](https://reactjs.org/docs/hooks-intro.html) and have a Clock component with a counter which is supposed to increase every second. However, the value does not increase beyond one.

&lt;!-- begin snippet: js hide: false console: true babel: true --&gt;

&lt;!-- language: lang-js --&gt;

    function Clock() {
      const [time, setTime] = React.useState(0);
      React.useEffect(() =&gt; {
        const timer = window.setInterval(() =&gt; {
          setTime(time + 1);
        }, 1000);
        return () =&gt; {
          window.clearInterval(timer);
        };
      }, []);

      return (
        &lt;div&gt;Seconds: {time}&lt;/div&gt;
      );
    }

    ReactDOM.render(&lt;Clock /&gt;, document.querySelector(&#39;#app&#39;));


&lt;!-- language: lang-html --&gt;

    &lt;script src=&quot;https://unpkg.com/react@16.7.0-alpha.0/umd/react.development.js&quot;&gt;&lt;/script&gt;
    &lt;script src=&quot;https://unpkg.com/react-dom@16.7.0-alpha.0/umd/react-dom.development.js&quot;&gt;&lt;/script&gt;

    &lt;div id=&quot;app&quot;&gt;&lt;/div&gt;

&lt;!-- end snippet --&gt;



State not updating when using React state hook within setInterval

I am getting this error when using the `useState` hook. I have this in it&#39;s basic form, looking at the [react docs][1] for a reference, but am still getting this error. I&#39;m ready for the face palm moment...

    export function Header() {
      const [count, setCount] = useState(0)
      return &lt;span&gt;header&lt;/span&gt;
    }



  [1]: https://reactjs.org/docs/hooks-reference.html#usestate

React Hooks Error: Hooks can only be called inside the body of a function component

Here is a screenshot of my sublime text window showing the eslint error being thrown for the switch / case statement. **I want** to have to indent 4 spaces, as the code shows.

[![enter image description here][1]][1]

and here are **4** different attempts to try to allow for an indent of 4 spaces, via modifications in the .eslintrc file in my react app. I googled for a solution and saw suggestions to add both switchCase and indentSwitchCase, but my .eslintrc rules are all - spaced, not camelcase, so I added all 4 rules in an effort to remove the error from sublime text but no luck... what am i doing wrong ?!?!

[![enter image description here][2]][2]

EDIT: this is a React / MERN app and im using sublime text as my editor. Let me know if i can share anything else from my .eslintrc file to help! 

  [1]: https://i.stack.imgur.com/oQi63.png
  [2]: https://i.stack.imgur.com/PFkeI.png


EDIT 2: I tried this:

    &quot;indent&quot;: [&quot;error&quot;, 4, {SwitchCase: 1}]

...but this is an invalid rule for indent. **How do I add an option object to the indent rule without getting an error?**

Cannot fix eslint rule on indenting case statements in switch statement

I do already have SCSS variables defined in `src/styles/settings/_variables.scss` and I am importing them into `src/styles.scss`, but still these variables aren&#39;t available for every single component.

Is there any way to make a global file which holds all SCSS variables for the rest of my components? Because writing `@import` in every single component `.scss` file it is very frustrating, especially if I have many nested components.

I know, there is a lot of similar questions, but it seems like they&#39;re all outdated and do not relate to the recent versions of Angular.

I use Angular 7.3 with CLI.

Global scss variables for Angular components without importing them everytime

I want to toggle only running one test, so I don&#39;t have to wait for my other tests to see the result of one test.

Currently, I comment out my other tests, but this is really annoying.

Is there a way to toggle only running one test in `Cypress`?



Cypress: run only one test

How to check if element is present or not, so that certain steps can be performed if element is present. Else certain different steps can be performed if element is not present.

I tried something like below but it didn&#39;t work:

```
Cypress.Commands.add(&#39;deleteSometheingFunction&#39;, () =&gt; {
  cy.get(&#39;body&#39;).then($body =&gt; {
    if ($body.find(selectors.ruleCard).length) {
      let count = 0;
      cy.get(selectors.ruleCard)
        .each(() =&gt; count++)
        .then(() =&gt; {
          while (count-- &gt; 0) {
            cy.get(&#39;body&#39;)
            // ...
            // ...
          }
        });
    }
  });
  });
```


I am looking for a simple solution, which can be incorporated with simple javascript
**if else** block or **then()** section of the promise

Something similar to Webdriver protocol&#39;s below implementions:

 1. `driver.findElements(By.yourLocator).size() &gt; 0`
 2. check for presenece of element in wait 

Kindly advise. Thanks

How to check if element exists using Cypress.io

In Cypress, I want to select a button from a group of buttons based on its text-content. How can I do it? Here is my approach:

    export const getCustomerButton = () =&gt; getNavigationSidenav()
      .find(&#39;mat-expansion-panel-header&#39;)
      .each(($el, index, $list) =&gt; {
        const text = $el.find(&#39;.mat-content &gt; mat-panel-title&#39;).text();
        if (text === &#39;Customer&#39;) {
          return $el;
        }
        return null;
      });

The problem I have now is that I have to filter out the nulls from the element array. Is there a less complicated way?

Cypress - how to find by text content?

I&#39;ve just started using Cypress with my React Typescript project. I&#39;ve gotten some simple tests to run:

```js
describe(&#39;settings page&#39;, () =&gt; {
  beforeEach(() =&gt; {
    cy.visit(&#39;http://localhost:3000&#39;)
  });
  it(&#39;starts in a waiting state, with no settings.&#39;, () =&gt; {
    cy.contains(&#39;Waiting for settings...&#39;)
  });
  it(&#39;shows settings once settings are received&#39;, () =&gt; {
    const state = cy.window().its(&#39;store&#39;).invoke(&#39;getState&#39;)
    console.log(state) // different question: how do I get this to be the state and not a $Chainer?
  });
});
```

It runs in Cypress just fine. But I get Typescript errors in Webstorm, saying that `cy` is not defined (a TS and ESlint error) and an error on `describe` saying `all files must be modules when the --isolatedModules flag is provided`.

I can make it a JS file instead of a TS file, then I still get `cy` is not defined.

I&#39;ve tried `import cy from &#39;cypress&#39;` but then I get `ParseError: &#39;import&#39; and &#39;export&#39; may appear only with &#39;sourceType: module&#39;` which is a whole other can of worms (I&#39;m taking baby steps in writing my tests and haven&#39;t had to import anything yet...)

`/// &lt;reference types=&quot;cypress&quot; /&gt;` **does not work.**

### Update (sort of)
I&#39;ve followed instructions [here][1] and have made a little progress. To my already very full React webpack.config.dev.js I added the recommended code:
```js
          { // TODO inserted for cypress https://stackoverflow.com/a/56693706/6826164
            rules: [
              {
                test: /\.tsx?$/,
                use: &#39;ts-loader&#39;,
                exclude: /node_modules/
              }
            ]
          },
```

to the end of the list of rules (just before the file loader).

When I do this as well as setting up the `plugins/index` file as indicated in the article, the cypress &quot;home screen&quot; runs but when I click to open my tests, it takes very many seconds and then shows lots of errors, starting with 
```
integration\settings.spec.ts
This occurred while Cypress was compiling and bundling your test code. This is usually caused by:

A missing file or dependency
A syntax error in the file or one of its dependencies
Fix the error in your code and re-run your tests.

./cypress/integration/settings.spec.ts
Module build failed (from ./node_modules/ts-loader/index.js):
Error: TypeScript emitted no output for C:\Users\...\...\front_end\cypress\integration\settings.spec.ts.
 @ multi ./cypress/integration/settings.spec.ts main[0]
```

Followed by, actually, a lot of Typescript output such as this:
```
C:\Users\jtuzman\dev\...\...\src\__tests__\Errors.test.tsx
[tsl] ERROR in C:\Users\jtuzman\dev\...\...\src\__tests__\Errors.test.tsx(37,41)
      TS2339: Property &#39;toBeTruthy&#39; does not exist on type &#39;Assertion&#39;.

C:\Users\jtuzman\dev\...\...\src\__tests__\Errors.test.tsx
[tsl] ERROR in C:\Users\jtuzman\dev\...\...\src\__tests__\Errors.test.tsx(41,45)
      TS2339: Property &#39;toBeDefined&#39; does not exist on type &#39;Assertion&#39;.
```

Notice that these are now errors for code outside the test files (although perhaps that makes sense). Many of them are for files in which I&#39;m using Jest rather than Cypress, and many errors, as you can see, seem to be related to it inferring an `Assertion` type on `expect` that is not Jest, such that it thinks the `toEqual` matcher is wrong. 

All the while, in Webstorm ESLint is still complaining about all my `cy` and TypeScript is underlining all those Jest assertions mentioned in the output.

This is all with a ts test file. If I rename the file to js, it says the file has no tests.

Any help? I love Cypress but I&#39;m having a hell of a time getting it to work fully!

  [1]: https://glebbahmutov.com/blog/use-typescript-with-cypress/

Content Type	Original Author	Original Content on Stackoverflow
Question	David Boydell	View Question on Stackoverflow
Solution 1 - Javascript	Diogo Rocha	View Answer on Stackoverflow
Solution 2 - Javascript	Jakob Jan Kamminga	View Answer on Stackoverflow

How to access the value of baseURL in Cypress

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

Solution 2 - Javascript

Why is String.prototype.substr() deprecated?

Flutter - How to center widget inside list view

Attributions