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Tag: reactjs

ES6: fire React function

This is the code: What I am trying to do is to fire the updateNews code from render: But keep getting this error: Uncaught Error: this.updateNews is not a function Answer You were not calling the functuion Note: You do need to bind because you use arrow function.

React – carousel

I’m creating my own carousel and I want to add circles navigation on the bottom of slider. I am fetching data from mongoDb (3 pictures) and load them in App component and passing via props to Carousel component. I want to map trough array and set index to data-slider property and later read this with e.target.dataset.slider and change in method

Displaying images from fetch API call Node/React

Im trying display images im fetching from API btw url is defined Gallery.js with or without the regex /[blob:]{5}/gi it is only displaying the alt prop and not the image. The image is received and the get call is successful but the objectURL url is not working. Any help? Answer const {image} = this.props.photos; is equivalent to It means, “assign

How to close the menu when clicking on the document (EventListener)

I have been trying to add an EventListener to the document to close my menu, but it seems that none of the event.stopPropagation(); actually listen to me :/ can anyone give me a hand here? Please this is what I tried adding in the openMenu function I also tried attaching the removeEventHandler on click in the componentDidMount, that didn’t work

Connecting actions to store outside a component?

So let’s suppose I have a store, with a redux-thunk middleware in it. I created the store and exported it like this: I can now access it anywhere in my app. But what if I want to dispatch an action from anywhere? I have them declared e.g. in myAction.js: Now I can import them and connect to my store/component like

Adding a greeting to a React App based on the time of day

I’m just starting out with React and I am trying to implement a greeting in which the user gets a different greeting based on the time of day. I’m familiar with the JavaScript function to do this, I’m just not sure how to directly insert it into my code. This is my navbar component that I have so far in

How to mock window.navigator.language using jest

I am trying to mock the window.navigator.language attribute in the browser in my jest unit tests so I can test that the content on my page is using the correct language I have found people online using this: Object.defineProperty(window.navigator, ‘language’, {value: ‘es’, configurable: true}); I have set it right at the top of my test file and it is working

Icons are not appearing in react-native

I am using react-native-vector-icons/FontAwesome to show icons and react-navigation for showing tabs. I am trying to show Home icon in button navigation but icons are not appearing. PFB relevant code of Icon and createBottomTabNavigator PFB screenshot as well. What do I need to do to show icon of Home? Answer Make sure that the font is linked in your iOS

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