I want the app to check if there’s a user logged in (firebase authentication). If there is, navigate to one page (react navigation v5), if there isn’t, to another. I have the following code: In App.js In Loading.js I get an error which says: TypeError: undefined is not an object (evaluating ‘…
Difference between component API and Backend API?
Hi guys this is a question based on a scenario. Implementing autocomplete widget where it, fetch data from backend render results as a tree support for radio, checkbox , icons In here what does the component’s API looks like? what does the backend API looks like? I know what is an API but this makes me …
How to hide password from user when password protecting a page [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 2 years ago. Improve this question How Can I Hide The Passcode so someone can’t just inspect the elemen…
Read JSON that is in website source in client-side vanilla javascript
I have a simple JSON file sitting in a data folder within the source of my website. In a javascript script I want to read the JSON and update the DOM with the information inside. The file structure of my website is like this I obviously can’t use require() from nodejs because this is on the client side.…
Call function in parent component without using props
I have a an App component that renders a CustomerForm component like so: App.js In my CustomerForm component, I have an onSubmit function that is called when the form submits: CustomerForm.js When I render the CustomerForm component from the App component, I realize that I could pass a reference to logout via…
Javascript Sim Tree Search Feature
I am using the jquery sim tree plugin to show tree categories. Sim Tree I have added a search bar to the filter tree data. What I want is to expand the inner ul li elements. My Code –> https://jsfiddle.net/yveLp6cs/ Expected Output –> Answer When you expand your li then sim tree library adds…
Why is this simple PHP login script not working?
I am very new to PHP and JavaScript and I have made a PHP and Javascript login script. However, it just shoots out Incorrect username or password. even though it’s correct. Here are my scripts: PHP: Javascript: HTML: I do not see a problem with this so I am not sure what is going on but if you can help
how do i add new property to existing interface and then export the new interface in Typescript?
How do I create and export a new interface – UIInterface: (would like to combine SummaryInterface with few other new properties) Example: My attempt Answer By extending the other interface like so:
JQuery if two conditions are met output message
I’m trying to output success to the log if two conditions are met in an if statement in jQuery. My click functions are working fine and changing the values. I just can’t get the if statement to work: Answer that ?
How to correctly get the clicked element after adding addEventListener with javascript?
I am trying to create a calculator-like screen using JavaScript. I created the number pad buttons using the following HTML template When the button that has the class calulator_button is clicked, I want to add the data-default-value to the display screen. I created the following JS code which listens for a cl…