Posted in javascript
8262
11:38 pm, March 7, 2021
 

minutes to decimal calculator javascript version

trying to do a more simple version of this post.

https://kruxor.com/view/code/NIjAQ/quick-tool-to-convert-time-into-decimal/ 

the php version requires post back to the server, so i think this can be done much easier in javascript.

i think the round function may need to change for javascript. rather than using round, need to use the Math.round(num) function.

Here is the function that will return the decimal version of minutes.

Javascript

function calc_decimal(minutes_val) {
  return Math.round(minutes_val) / 60;
}

so its working in console, just add: 

Javascript

console.log(calc_decimal(45));

which will return 45 minutes in decimal which is 0.75

now need to add a html form to allow users to easily change the minute value

HTML

<h2>Calculate Minutes to Decimal</h2>
<div class='form-row'>
	<input type='number' name='minutes_val' id='minutes_val'>
  	<button class='btn btn-primary' onclick='calc_decimal_click();'>Calculate Decimal</button>
</div>
<div class='alert alert-primary mt20'>
  <div id='dec_result'></div>
</div>

Javascript

function calc_decimal(minutes_val) {
  return Math.round(minutes_val) / 60;
}
console.log(calc_decimal(45));

function calc_decimal_click() {
  // set a html value here for the result rather than returning it. 
  var minutes_val = document.getElementById("minutes_val").value;
  console.log("minutes_val : " + minutes_val);
  var result = Math.round(minutes_val) / 60;
  console.log("result : " + result);
  // build a nice result string
  var res_string = minutes_val + " Minutes displayed as a Decimal is " + result
  document.getElementById("dec_result").innerHTML = res_string;
}

Calculate Minutes to Decimal

View Statistics
This Week
338
This Month
1359
This Year
2640

No Items Found.

Add Comment
Type in a Nick Name here
 
Other Items in javascript
get current year in javascript find a text string and replace it in javascript check if an item id exists in javascript Twitter Post Fetcher v18.0.4 - javascript twitter feed fetcher Are you sure you want to navigate away from this page? #JavaScript warning floating message box on bottom right of screen with close button share to twitter javascript button function open a new window share to linked in current url button with javascript Get current URL and add a share to facebook share button with it encode url with javascript Twitter Post Fetcher Script Javascript Objects Notes javascript add class to element update value of element using javascript javascript attach a click event to an id not using jquery console dir usage how to write a javascript string over multiple lines best way to write html into an existing page javascript Uncaught TypeError: Cannot set properties of null (setting 'onclick') check url hash using javascript submit form with javascript Converting PHP to Javascript for State Extraction by numeric value Australian State Names get the value from a textarea element javascript get content from element convert characters to entities using javascript replace Auto Create HTML Code Snippets loop to arr.length or array length get tomorrows date with javascript get yesterdays date with javascript add new random image with button Create Strings using Template Literals Darkmode JS - Add darkmode to your site with one script Use destructuring assignment within the argument to the function half to send only max and min inside the function. Using Destructuring and the Rest Parameter to Reassign Array Elements Use destructuring assignment to swap the values of a and b Sweet Alert 2 Methods and Examples How to Assign the Value of One Variable to Another in Javascript Slick Slider Carousel with Custom Next and Prev Buttons Console Tips and Tricks javascript random string to put on url for cache javascript try catch example function load json data url or api with javascript log the console log output to a div javascript basic test array and loop how to join an array in javascript using the join method show the current date in javascript get element by id and hide it get element by id with javascript set a cookie on click and then check if the cookie is set and dont show that message again console table rather than console log for javascript objects and arrays
Related Search Terms
Search Code
Search Code by entering your search text above.
Welcome

This is my test area for webdev. I keep a collection of code here, mostly for my reference. Also if i find a good link, i usually add it here and then forget about it. more...

Subscribe to weekly updates about things i have added to the site or thought interesting during the last week.

You could also follow me on twitter or not... does anyone even use twitter anymore?

If you found something useful or like my work, you can buy me a coffee here. Mmm Coffee. ☕

❤️👩‍💻🎮

🪦 2000 - 16 Oct 2022 - Boots
Random Quote
Be Yourself, Back Yourself
Kristie Bennett, Survivor
Random CSS Property

place-self

The place-self CSS shorthand property allows you to align an individual item in both the block and inline directions at once (i.e. the align-self and justify-self properties) in a relevant layout system such as Grid or Flexbox. If the second value is not present, the first value is also used for it.
place-self css reference