We have this code: Here is the rule: stringA always is a part of stringB and it matches some portion of stringB from right or left. For instance in the above code we have stringA which is matching a part of stringB from the right of stringB . right? The second rule is we want to fill notIncluded with a
Tag: javascript
React How to re render map function on change of variabel?
Here is an excerpt which should show my problem. In my project I do something with the grid and now I want to reset it, but I dont know how it works because if I change the grid variable, the .map() function doesnt re render. I hope you understand my problem and you can help me. That is my code:
Change class component to functional component with props
I am trying to convert a class component to functional component but i keep getting problem, I think im doing it wrongly Class Component: This is what i try to do as my Functional Component (Please note I dont understand function component just yet) Its not giving me the desired output, I have tried tweaking …
What is wrong with the React components Route?
Attempting to build a flashcard app with React and React Hooks, I am able to get my home screen rendered. When introducing Router, I am able to click the link, update the path to be the one I am looking for, but nothing is being rendered from that new page. App.js ShowAllDecks.js –> List of flashcard…
Uncaught TypeError: Cannot read property ‘collection’ of null
I’ve been trying to get data out of a collection, but it returns me Uncaught TypeError: Cannot read property ‘collection’ of null. The Mongo database itself is connected with the cloud and checking from there the collection with that name exists. I have planned to later use the output for co…
on Submit add input to form than submit the updated form vanilla js
I have a form with onsubmit=’ConsolidateRTFEdits(event)’ and the function is as follows: I can successfully log the form with added input, as well as see it updated on the DOM, however form.submit() submits the form without the appended attribute. What am I doing wrong? How to sumit the updated fo…
v-slot is always undefined in VueJS
Here is the problem. Root view: Grid component (container): And finally grid item component: I’m getting the error: GridItem.vue Uncaught (in promise) TypeError: Cannot read property ‘testData’ of undefined. I’m cracked my head trying to understand what’s going wrong. Need help, …
Rendering Content Conditionally in React JS Based on the state
I have a page that renders questions that have been posted. I want to create a button that displays only answered questions based on the state = {isAnswered: true}. Is the state isAnswered is true then onClick will display answered questions only where isAnswered is set to true in the object. How can I used t…
How to add two states to my component inputText in OnChangeText
I need to add two parameters to my onChangeText, but I don’t know how I can do that, My component is: The functions HandleDDD and Handle CelNumber are call where my param phone is true, but i need this change state with my onChangeValue aways, but the way I did, not work can you help me? Answer From on …
“Twilio Quest” challenge, any help would be appreciated, I dont know what I’m doing wrong,
Can’t seem to get a hang of this “Twilio Quest” Challenge. Hey, I’ve been playing this game called “Twilio Quest” for the past week. I just wanted to learn JavaScript, and I think it looked kinda neat. The challenges served has been up and down in difficulty. But I’ve…