Vandana Posts - Answer Overflow

Vandana

•Created by Vandana on 9/13/2024 in #front-end

setInterval()

Steps to reproduce:title of the document should be changing as new messages every second. But it doesnt happen here ,only on the initial refresh after 1 sec the title changes and remains num

 setInterval(() => 
document.title = '(2) New Messages', 1000)

 setInterval(() => 
document.title = '(2) New Messages', 1000)

143 replies

KPCKevin Powell - Community

•Created by Vandana on 9/11/2024 in #front-end

Condition overlaps?

if (randomNum >= 0 && randomNum <= 1 / 3) {
    compMove = 'Rock';
}
else if (randomNum > 1 / 3 && randomNum <= 2 / 3) {
    compMove = 'Paper';
}
else {
    compMove = 'Scissors';
}

if (randomNum >= 0 && randomNum <= 1 / 3) {
    compMove = 'Rock';
}
else if (randomNum > 1 / 3 && randomNum <= 2 / 3) {
    compMove = 'Paper';
}
else {
    compMove = 'Scissors';
}

Can anyone confirm this as the above code will not cause any overlap in value

90 replies

KPCKevin Powell - Community

•Created by Vandana on 9/5/2024 in #front-end

CallBack Functions

What are callback functions in js and when do we use it ? Can anyone explain in brief with an example.

64 replies

KPCKevin Powell - Community

•Created by Vandana on 9/4/2024 in #front-end

Check if two strings are Anagram.

Can anyone help me further i have found the occurances of each character.

 
        function areAnagrams(str1, str2) {
            const result1 = {};
            const result2 = {};
            for (let i = 0; i <= str1.length - 1; i++) {

                if (!result1[str1[i]]) {
                    result1[str1[i]] = 1;
                }
                else {
                    result1[str1[i]] += 1
                }
            }
            console.log(result1);
            for (let i = 0; i <= str2.length - 1; i++) {
                if (!result2[str2[i]]) {
                    result2[str2[i]] = 1
                }
                else {
                    result2[str2[i]] += 1;

                }
            }
            console.log(result2);



        }
        console.log(areAnagrams("listen", "silent"))

 
        function areAnagrams(str1, str2) {
            const result1 = {};
            const result2 = {};
            for (let i = 0; i <= str1.length - 1; i++) {

                if (!result1[str1[i]]) {
                    result1[str1[i]] = 1;
                }
                else {
                    result1[str1[i]] += 1
                }
            }
            console.log(result1);
            for (let i = 0; i <= str2.length - 1; i++) {
                if (!result2[str2[i]]) {
                    result2[str2[i]] = 1
                }
                else {
                    result2[str2[i]] += 1;

                }
            }
            console.log(result2);



        }
        console.log(areAnagrams("listen", "silent"))

33 replies

KPCKevin Powell - Community

•Created by Vandana on 8/31/2024 in #front-end

findIndex()

can anyone explain findIndex in js how is the workflow in brief.

4 replies

KPCKevin Powell - Community

•Created by Vandana on 8/26/2024 in #os-and-tools

autoformatting which can be easily set up in VS Code and in Codepen

which makes debugging and reading your code 10x easier any suggestions of now i use beautify and prettier .

9 replies

KPCKevin Powell - Community

•Created by Vandana on 8/22/2024 in #front-end

Math in JS.

Can anyone please go through the code and let me know why converting from dollar to cents gives wrong result Steps: $32.5:Converting to cent->32*100=3200. value after decimal point is cent =0005. $10 to be charged extra if cost is less than $40 so $10 gets converted into cents as =1000 Summing up all the above three values we get in cents=4205. convert back to dollars=4205/100=$42.05.This is the process used to convert manually. but in reality ans should be $42.5. https://codepen.io/kvandana451/pen/wvLjBEa

161 replies

KPCKevin Powell - Community

•Created by Vandana on 8/9/2024 in #front-end

JS Shorthand

Steps to reproduce: 1]using if statement:

let compValue;
if(randomNum>=0&&randomNum<1/3){
compValue = 'Rock';
}
console.log(compValue)//Rock

let compValue;
if(randomNum>=0&&randomNum<1/3){
compValue = 'Rock';
}
console.log(compValue)//Rock

2]using shorthand

randomNum>=0&&randomNum<1/3 && compValue='Rock';

randomNum>=0&&randomNum<1/3 && compValue='Rock';

=>This statement gives me an error stating ';' expected.javascript let compValue: undefined. Can anyone pls explain me this

102 replies

KPCKevin Powell - Community

•Created by Vandana on 7/11/2024 in #front-end

Arrays

Consider an example

const myArray = [1,'hi',true,{name:'socks'},[1,2]]
console.log(type of([1,2]))  //object
console.log(myArray.isArray[1,2])//true

const myArray = [1,'hi',true,{name:'socks'},[1,2]]
console.log(type of([1,2]))  //object
console.log(myArray.isArray[1,2])//true

What is the difference here in typeof and isArray can anyone pls help.

11 replies

KPCKevin Powell - Community

•Created by Vandana on 7/1/2024 in #front-end

Object Conversions

Can anyone pls explain in brief what are the important and necessary object to primitive conversions in brief. or object conversions with egs

16 replies

KPCKevin Powell - Community

•Created by Vandana on 6/28/2024 in #front-end

Const objects can be modified

can anyone pls make me understand what is happening under the hood?

77 replies

KPCKevin Powell - Community

•Created by Vandana on 6/27/2024 in #front-end

eval()

Why eval js inbuilt function is not recommended to use ??

105 replies

KPCKevin Powell - Community

•Created by Vandana on 6/27/2024 in #front-end

variables inside the function and order of Precedence in JS

The variable fahrenheit has function scope i understand but it is still not declared (as a let or const )but works why so?? function convertToFahrenheit(celsius) { fahrenheit = (celsius*9/5)+32; return fahrenheit; } console.log(convertToFahrenheit(25));

76 replies

KPCKevin Powell - Community

•Created by Vandana on 6/24/2024 in #front-end

Math.round()

Steps to reproduce: 1]Cost of item1:$20.95 Cost of item2:$7.99 Cost of item3:$18.99 Cost of Shipping:$4.99 Tax:10% Calculating the total cost i am using cents and then converting back to dollars :Math.round((2095+799+1899+499).1)/100=5.29 but this gives a different answer Math.round((2095+799+1899+499).1/100)=5 Can anyone explain what effects the outer bracket of Math.round ??

12 replies

KPCKevin Powell - Community

•Created by Vandana on 6/23/2024 in #front-end

trusted HTML Element

Steps to reproduce: 1]As soon as i open the google chrome search engine ,and open a new tab and then open console to type document.body.innerHTML = 'hEY' it gives me an error stating This document requires 'TrustedHTML' assignment. 2]But then the same process when i open the new tab and in the URL I type google.com and open the console and type document.body.innerHTML = 'hEY' there is no such error . Could anyone have any idea about this.

17 replies

KPCKevin Powell - Community

•Created by Vandana on 6/21/2024 in #front-end

vertical centering

i am always getting stuck to align vertically at the center of the page,can anyone figure out to make it responsive https://codepen.io/kvandana451/pen/yLWKEjg

32 replies

KPCKevin Powell - Community

•Created by Vandana on 6/12/2024 in #front-end

small space left at the bottom for the img

16 replies

KPCKevin Powell - Community

•Created by Vandana on 6/11/2024 in #front-end

How to make images responsive using srcset and size attribute??

I have tried using srcset but it isnt working the demo link line 37 https://github.com/kvandana451/Assorted-Cards-images/blob/main/index.html

453 replies

KPCKevin Powell - Community

•Created by Vandana on 6/11/2024 in #os-and-tools

Emmet Autocomplete for srcset atrribute

Steps to reproduce: Position your cursor inside the " " for srcset & type a /. You cannot use autocomplete to easily enter in the path to the image you wish, e.g., /images/img1.webp. You have to manually type out the path. This is a problem. Autocomplete should work in both src AND in srcset.

6 replies

KPCKevin Powell - Community

•Created by Vandana on 6/10/2024 in #front-end

vertical alignment for an element in the middle

Can anyone help me out to center vertically in the middle as i always fail to achieve this.(min-height is given in the requirement) https://codepen.io/kvandana451/pen/pomWzgK

88 replies

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