Container Components and Stateless Functional Components in React – Zsolt Nagy

  • Let’s introduce functional components: – – has become a function with a argument, returning the return value of the method of the original implementation.
  • Implications of the structure of stateless functional components: – – In the introduction, I mentioned that stateless functional components come with performance benefits.
  • Typically, container components have the following properties: – – The rule of thumb for choosing the appropriate syntax for React components is the following: – – then it is advised to use stateless functional components.
  • Let’s put theory into practice, and transform all the stateless component in our chat application into functional components.
  • Reviewing the conditions for modeling a component with a function, we can see that there is absolutely nothing preventing us from creating a functional equivalent of the class.

We will now introduce another way to define simple components. You will not only write less code, but you will also benefit from performance optimizations done by React. Let’s introduce functional components:
Continue reading “Container Components and Stateless Functional Components in React – Zsolt Nagy”

Container Components and Stateless Functional Components in React – Zsolt Nagy

  • Let’s introduce functional components:

    has become a function with a argument, returning the return value of the method of the original implementation.

  • Implications of the structure of stateless functional components:

    In the introduction, I mentioned that stateless functional components come with performance benefits.

  • Typically, container components have the following properties:

    The rule of thumb for choosing the appropriate syntax for React components is the following:

    then it is advised to use stateless functional components.

  • Let’s put theory into practice, and transform all the stateless component in our chat application into functional components.
  • Reviewing the conditions for modeling a component with a function, we can see that there is absolutely nothing preventing us from creating a functional equivalent of the class.

We will now introduce another way to define simple components. You will not only write less code, but you will also benefit from performance optimizations done by React. Let’s introduce functional components:
Continue reading “Container Components and Stateless Functional Components in React – Zsolt Nagy”

pixielabs/cavy – An integration test framework for #reactjs native

  • Cavy is a cross-platform integration test framework for React Native, by Pixie Labs.
  • Cavy (ab)uses React generating functions to give you the ability to refer to, and simulate actions upon, deeply nested components within your application.
  • This function should be used if your testable component does not respond to either or , for example:

    Cavy is a comparable tool to Appium.

  • The key difference is that Appium uses native hooks to access components (accessibility IDs), wheras Cavy uses React Native refs.
  • Jest is a useful tool for unit testing individual React Native components, whereas Cavy is an integration testing tool allowing you to run end-to-end user interface tests.

cavy – An integration test framework for React Native.
Continue reading “pixielabs/cavy – An integration test framework for #reactjs native”

Container Components and Stateless Functional Components in React – Zsolt Nagy

Container Components and Stateless Functional Components in #ReactJS:

  • Let’s introduce functional components:

    has become a function with a argument, returning the return value of the method of the original implementation.

  • Implications of the structure of stateless functional components:

    In the introduction, I mentioned that stateless functional components come with performance benefits.

  • Typically, container components have the following properties:

    The rule of thumb for choosing the appropriate syntax for React components is the following:

    then it is advised to use stateless functional components.

  • Let’s put theory into practice, and transform all the stateless component in our chat application into functional components.
  • Reviewing the conditions for modeling a component with a function, we can see that there is absolutely nothing preventing us from creating a functional equivalent of the class.

We will now introduce another way to define simple components. You will not only write less code, but you will also benefit from performance optimizations done by React. Let’s introduce functional components:
Continue reading “Container Components and Stateless Functional Components in React – Zsolt Nagy”

React stateless functional components

  • Stateless functional components introduced in React 0.14 a way to write React Component in a simple manner using Plain Javascript functions is great.
  • The props you pass to your component is automatically injected into the props of your component main function.
  • They are very useful if you are using a lot of components which are stateless which is quite common if you are using redux kind of library to manage your application state.
  • // I used them to make Font Awesome more easy to use with react function Icon ( props ) { return < i className = { "fa fa-" + props .
  • Have a look at these tiny little things.

Stateless functional components introduced in React 0.14 a way to write React Component in a simple manner using Plain Javascript functions is great.
Continue reading “React stateless functional components”