# Tag: time

## Creating date range for each loop in a date object array in js

I am currently working on a dropdown filter that lets the user choose between a period of time in where he can select either daily, weekly, monthly and yearly. I manage to create the daily filter but on the weekly, monthly and yearly bases I am having issues with the start and end date that I need to consider each

## Add minutes and hours to string moment js

input – 15:30 output – 17:10 I try to do this: but it doesn’t work, moment says “invalid date” Answer First of all you need to parse the string data, we know we’re using a valid hour. You can use a second parameter in the moment function, something like this: You simply need to know what format to convert your

## Javascript Time. Add +1 to current time

Hi I want my timer to continue from the current time each second. Keeping the same time format. I just added a simple code to check. Code Answer Here is the working solution. You had to split your string that represents time, so you can count the amount of seconds that you actually had. Note: I’ve used this as help

## Time Space Complexity of k smallest of unsorted array

I solved this problem given to me in an interview, but I do not know what the Time Space complexity is. What is the Time Space complexity of the following solution? I think it might be O(log(n)) or is it simple O(n)? Answer Your solution uses a characteristic of JavaScript objects: keys that are decimal representations of indexes will be

## How to define time ranges in React?

this is my code. I’m try to define a range of hours so that it changes color depending on the moment of the day, but I don’t know how to create a range (e.g. from 7 – 12 -> morning). The problem now is that if I put 3am is says morning when I want it to say night, but,

## How to set user-defined time in Javascript and add 2 hours to it?

The user is providing time in the format of 12:00:00 (which is in string), and I want to add 1 or 3 hours to the time and show it as the end time. The code: How I am adding the time: I know I am doing something wrong, but can’t figure out what? Thanks in advance! Answer You have to

## Insert SubString in a time input type

I have an time calculator which returns an input type of time in the following format: hh/mm/ss It currently displays like this: When I do a calculate function it return “3:0:0” instead and removes the “0”. How can I change this to be 03:00:00? The “0” must only be added if the h/m/s is less then 10. Here are my

## Select next object based on Date

I’m trying to Loop through an array and pull out the closest/next meeting object Chronologically. Each object has a Start and End time but I want to know what is the current event OR the next event that’s going to happen. Failing that to get the last event. e.g. This is what i have so far: Answer Try this function

## How can i set the date to the beginning of calendar

I want to set the time to the 1st January 0000 and time at 00:00:00 i tried to calculate a lot but i’m unable to set the date to the beginning point. I am setting the date with negative sign like this – new Date(-4000) but setting the year to 0 gives me only the 1900 so how can get

## filtering array in range of array time and time now javascript

i get some trouble when i try to filtering time now in array time, i have code like this ; the problem is output not same with my expectation. i want : if timeNow is 08, timeShift output(selected) is 08, if timeNow is 07, timeShift output(selected) is 06, if timeNow is 09, timeShift output(selected) is 08, if timeNow is 23,