I’m creating a kid’s learning tool that has a form which matches 4 letters to a word. I want to count the number of character matches in a word. But it counts duplicates of letters as 2 instead of 1. For example if the word is “loot”, and the user submits “flop”, the matching letters are 3 instead of 2,
Tag: function
Uncaught Reference Error: (function) is not defined JAVASCRIPT
This is the code and it says that the function inside both objects is not defined. As I said, It brings an error that reads: error: Uncaught ReferenceError: calcBMI is not defined Answer When you defining an object, you can’t execute a function that is being defined in the object. In your case you should simply set a getter for
How to return an array of numbers that represent lengths of elements string?
If an array was: [‘hey’, ‘you’, ‘muddy’] The expected output should be: [3, 3, 5] This is what I have so far: Any help would be much appreciated. Answer You need to push the length of every item (using Array#push) and return the array in the end: Another solution using Array#map:
How would I have this sum print out it works
I don’t know how to work this out, please help Answer You could define a sum function that takes two numbers and returns the sum i.e., the total amount resulting from the addition of two or more numbers, amounts, or items. “the sum of two prime numbers”
How can I control this code with “setInterval”?
I tried create a function for use that code in setInterval but when I create a function with that code it stop working. I tried almost everything. Could you guys help me about that? Answer You’ve not defined your function properly and you are calling setInterval in the function that you call in set interval. Can you try this? I
Converting nested loops into forEach();
Im trying to learn forEach() method but i cant find more advanced examples. So i thought about refactoring my Codewars code to learn from it. I dont know know to properly use forEach method in nested loops. Hope You can help me learn from this example 🙂 6 kyu – Replace With Alphabet Position https://www.codewars.com/kata/546f922b54af40e1e90001da/train/javascript Answer (Note: @Terry’s solution is
how to fix an error “is not a function” in unit testing angular 11
I saw this error lot of times but any solution for my problem, my component : My test : I don’t understand why I got this error : ” TypeError: this.dialogService.refs.push is not a function” I try to replace useClass instead of useValue but I had unreachable knowing is angular 11. I did lot of research but I found anything.
When to use : and = in javascript?
I have these code snippet. and How do I know when to use ‘=’ and when to use ‘:’ in javascript? Answer = inside a function or code block (like inside an if/else/for/while etc.), : inside of objects.
Using prevState Callback function in UseState react Hook
I have some array of products inside filteredProducts variable and wanted to sort them according to the price and newly added products. When using prevState like this without having { } in the callback function, the code runs fine. But when using { } for the prevState callback function like this , it is just throwing error in console. Answer
how to activated new function after button clicked for three times
i want to add new function after i clicked the button 3 times and erase/remove the former function html file: javascript: // i want this btn1 have function to clear function toRed and add toBlue instead after clicked 3 times Answer remove the event listener and add a new one when it was clicked three times: