Tag: if-statement

Remove duplicates in array by checking if its the same as the next one

arrays duplicates for-loop if-statement javascript

I am learning JavaScript right now and I want to practice for loops and if statements. So I found a little exercise: Remove all duplicates in the array. I know there a probably better solutions but I want to know why my code isn’t working. Can someone help me? Thx 🙂 Answer splice is a method so you have…

HTML Javascript redirecting user with if statement does not work

forms html if-statement javascript redirect

I want to use user input to decide whether or not the user is redirected to another page. In this case, the user inputs a username and password. If the username and password is correct, then the user is redirected. For this, I use simple javascript and html: However, when I fill in the correct username and pa…

Exporting a boolean variable that depends on an if statement (React JS & Firebase)?

boolean firebase if-statement javascript reactjs

I’m trying to declare a boolean from my firebase.js configuration file that depends on an if-else statement that checks whether a user is logged in or not. I want to store the log in status of a user in a boolean variable and export that variable across different components in my React app. So if user i…

javascript if solution if x is greater than any of the array numbers

arrays if-statement javascript

need a little help please for a solution I have an array numbers and 2 vars. if x is greater than any of the array numbers,then y becomes the next number… Answer Use this function .

Why I can’t do with Switch-Case what I do with If-Else in JS?

dom dom-events if-statement javascript switch-statement

Can you help about the JS DOM example below, The if-else structure I specified in example 1 works, but the switch-case structure I specified in example 2 does not work. The switch-case structure does not work, although they both function the same. Why ? Thanks — Example 1 / Works — — Example…

Conditional check in JavaScript not working

if-statement javascript

I am trying below code but it’s not working as expected. I wanted to check if the cell Value has India or UnitedStatedofAmerica or Germany or Switzerland then go inside and if it’s undefined, null or blank, or it doesn’t contain the text location then go to else and set the value to ROW, But…

Why use !== when you can use ===?

if-statement javascript operators

I could simply vice versa the code to be executed by the if and else. And === is more easier to use compared to !== so why is the not equal operator used? Answer You cannot use conditional statements to convert the operators for most common cases. In your example, it would be easy and readable to convert the …

Refactor React UseEffect removing repeating else if

if-statement javascript reactjs refactoring use-effect

I have the following useEffect I want to refactor it, removing all these else if lines See the code As you can see the country: GB, DE, FR, BR, US, IT, US, ES and MX sharing the same setIsDisable(false) How would you write in 1 line of code whitout repeating the same else if ? Answer if you want to

JavaScript for loop issue affects guess count

for-loop if-statement javascript

so I’m trying to build a JavaScript hangman game and I’m having a problem with my checkMatch function. what I’m trying to achieve is for it to check against the hiddenChoice array and only run the code in the else if statement if this.id isn’t in the array at all. currently if hiddenCh…

if something == something show something and keep showing it

if-statement javascript p5.js

so when this is true i want to keep the images even when this turns false later Answer I don’t understand why the condition looks like this label==”HowMuchCanYouSee”==true and not just this label==”HowMuchCanYouSee” Anyway you may add a new flag to the story starting with false t…