I use MERN stack and redux. I have two problem and please help me. 1) Every component react I add this: I want to get user data every time if user loginned or not. Is it true? or some idea have? 2) In backend if data current I send using 200 status codes. another variant I send data other status
How do I force JavaScript to load in sequential order?
I’m struggling with loading JS files in sequential order, despite having looked at various other SO posts and documentation on async and defer. My code structure is as follows: The contents of lang.js are as follows: By my understanding, these scripts should load and execute in the order eng.js/fra.js -…
How can I do I cancel javascript await sleep?
The most common implementation of a sleep function in javascript is returning a Promise after setTimeout resolves: I have for loop with await sleep to keep it from executing too fast, such as not requesting xhr too fast. I also have a isBreak flag elsewhere to tell me when to stop the for loop. However, the i…
Uncaught TypeError: Cannot read property of a todolist
Uncaught TypeError: Cannot read property ‘contains’ of undefined Uncaught TypeError: Cannot set property ‘display’ of undefined I am trying to loop through todoList and get the child element. Where I am wrong? The child element is the list item. The list items are dynamically added on …
Hoisting inside function – inner function and variable having same name – Output?
Not able to get this function execution. Can someone explain? Answer Function and variable declarations are hoisted. Function declarations also hoist the assignment of the value. So both function x and var x create a variable named x in the current scope. function x also assigns a function to that variable. A…
How do I get total addition of three group?
Here I three groups with range slider and input. I want to apply two things. Multiplication of range slider and the input. And at the end Addition of all multiplication. I have a different ID for all input types. I know the code is wrong. Answer You can give common class to your amt input as well then use ind…
how do i implement two onclicks in a button?
so i need a button to change an image then it is clicked but to also change a certain text. to do so I require two onclick functions. how do I do this? this is my code so far. so I can change the images when the buttons are clicked but I cant make the text change as well. Answer
Delete button removes all the children , instead of just the one with the key
I have researched this topic for quite some time now, yet I still cannot make the ‘Remove’ button in the child component (ControlledOpenSelect) only remove the item with the key it was passed – by using the callback function. My ControlledOpenSelect (the child component): My parent component…
Select2 V.4: Search box is not got focus on open
I using select2 for my project for the first time, and I thought I met many of my project requirements. However, one thing it was not is on their search box. When I click on select2 element, the dropdown was opened but I could not type anything in their input box unless I click on their search. Here is my
fs.writeFileSync method writing wrong to a text file
I have a problem with my script related to writing to a text file. The logic flow works as follows: I read an entire unformatted text file with fs.readFileSync and pass all the read content to a variable of type string. After that I use the .split to break this text into several parts and keep each part of th…