Building Size-Aware React Components – LogRocket

Building Size-Aware #ReactJS Components:  by @b_edelstein #JavaScript

  • When using an HTML5 Canvas that has to be re-drawn whenever its size changesWhen building a layout where the user can adjust the sizes of different panesWhen using elements or 3rd party libraries that require a known size like react-virtualized, fixed-data-table, etc.When rendering elements with absolute positioning that need their position adjusted when the container size changes.When animating an element’s size with CSS with additional logic that depends on this animated sizeSome of these behaviors may be achievable with CSS, or by managing window size with the onResize event, but in the interest of building React components that are maximally reusable, it makes sense to encapsulate this logic into the component itself.
  • This method is called whenever the component’s size or position changes, and can be used to trigger side effects or put the dimensions into state.This solves most of the earlier examples but there’s one issue — a chicken and egg problem.
  • As such, we don’t always know the dimensions in the render function, so it’s not entirely possible for the component to have render logic based on its dimensions.react-sizemeTo solve this problem, we turn to a library called react-sizeme.
  • This library is similar to react-measure but uses a clever solution to solve the aforementioned problem.react-sizeme does an initial, invisible render of the component to measure its size.
  • Usually this feels quite fast, but in practice, I’ve noticed a slight delay in detecting changes which can lead to a component feeling slow.In general, react-measure has less of a performance impact, so it should be used if possible, but in cases where a component’s initial render depends on its size, then react-sizeme is a good option.Resources

When building React apps, it is sometimes advantageous for components to have awareness of their size and position on screen. This is useful both for rendering content initially, but also for…
Continue reading “Building Size-Aware React Components – LogRocket”

React.js Efficient Server Rendering – Hacker Noon

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

React.js Efficient Server Rendering – Hacker Noon

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

React.js Efficient Server Rendering – Hacker Noon

React.js Efficient Server Rendering @tigranbs  #Reactjs #JavaScript #Nodejs

  • React.js Efficient Server RenderingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rendering – Hacker Noon”

React.js Efficient Server Rending – Tigran Bayburtsyan – Medium

React.js Efficient Server Rending  #python #node #nodejs #serverrendering #react #reactjs

  • React.js Efficient Server RendingFor about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more simplicity to frontend.But in some cases we need SEO with dynamic JSX content or we need more performance in load time for a frontend pages.
  • And for that cases Facebook developers made React.js in that way so it can be rendered on Server Side too, using Node.js basic functionality.So the flow is almost similar to this oneClient sending request to get some JSX template pageNode.js server getting main file containing JSX codeRendering it to plain HTML codeSending HTML response to clientUsing HTML markup, then client loading also React.js client side code for adding dynamic logic to rendered HTMLThis is helping to display HTML content faster than React will render it, and it is helping to give some content to Search Engine bots or website crawlers.But What If You Don’t Have Node.JS backend?This is the real questing that was standing for me when I’ve started working on large Python Django project.
  • I decided to do React.js as a frontend, but they hat a lot of Python stuff on a backend, I couldn’t rewrite all code just for server side rendering.
  • I think we really don’t need!And I got an idea to build standalone Node.js Server only for React.js JSX template rendering and nothing else, so I can make a proxy request to that server and it will render JSX content for me and will response pure HTML back to Python Django Template.
  • What is that?So using basic principle of proxy requests I just made very simple code for Pythonimport requestsimport jsonPROXY_RENDER_ADDRESS = ‘http://localhost:3000/’def get_html(filename, props): try: props_str = json.dumps(props) r = + filename , data=props_str , headers={‘Content-Type’: ‘application/json’}) if r.status_code == 200: return r.text, props_str except Exception as e: print(e) return False, FalseWhich is basically making POST Request to proxy rendering service and by passing global state as a JSON, getting back the HTML code rendered by Node.js server.So the main advantages that I gotNo need to integrate Node.js in backend side, or use crappy JS engines in Python, which are eating a lot of memoryAbility to keep JSX template cache, which give huge load time improvementsScale backend services without scaling base rendering service, so you can have multiple servers with single cached rendering service and get better performanceHuge flexibility in writing code.

For about a year now I’m developing Web Applications based on React.js, and it was amazing for me to write code that actually scales with JSX components, rather than functions, it’s giving more…
Continue reading “React.js Efficient Server Rending – Tigran Bayburtsyan – Medium”

Mobile friendly datepicker with React JS

Mobile friendly datepicker with React JS   #reactjs #mobile #javascript #webdev

  • jQuery drop down menu with images – ddSlick
  • Easily internationalizable solution, made using React JS.
  • The “react-dates” is a nice, mobile friendly datepicker from Airbnb .
  • Tags: date , framework , html5 , JavaScript , Mobile , node.js , picker , React
  • Open MCT – a web based mission control framework.

React-dates is a nice, mobile friendly datepicker, implemented by Airbnb, using an awesome React JS web development framework.
Continue reading “Mobile friendly datepicker with React JS”