Skip to content
Advertisement

Tag: reactjs

React js fetch API

I am learning React.js and trying to fetch API like this and this is the error I get http://prntscr.com/k36ggq I am pretty new in this, so if anyone can help me with this that would be great. Thanks Answer Try by setting the header as follows. https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS You just remove the mode: ‘no-cors’ in your code,

How to detect page scroll to top in React.js?

I have a UI problem to solve in React. When the user start scroll, will add a background class to the header. When scrolling to the top of the page, header background disappear. I have figure out how to add the background while scrolling and modify the state, but how to detect whenever user scroll to the top of the

React onClick function in map function

I try to trigger an onClick event in a map function, and I get this error : TypeError: Cannot read property ‘handleClick’ of undefined How do we trigger an onClick event in a map function ? Here is my code : Answer Use an arrow function as the function given to map instead and this will be what you expect:

React – Shorten string based on width

I have a container with the width: 500px. In this container there are 2 strings, “iiiiiiiiiiiiiii” and “MMMMMMMMMMMMMMM”. You can clearly see that the “M” string is a lot wider than the “i” string, but both fit in the 500px screen. If i make the container smaller, lets say 350px the M string is too wide and i want to

Advertisement