chrisnajman / costs-calculator

A simple calculator that tracks how much you spend per day over a number of days. An average spend is given for the period.

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Website (Git Pages)

Costs Calculator

Description

A simple calculator that tracks how much you spend per day over a number of days. An average spend is given for the period.

Add a date (required). I'd recommend that you do this every day - even on the days you don't spend anything - in order to get an accurate average.

If you haven't spent anything, just add the date, then submit the form.

• If you try to submit a blank field in either of the number fields, you'll get an alert popup.
• You cannot submit the form without specifying a date.

Additionally, you can:

• delete an entry,
• drag and drop an entry.

This is so that:

• if you make a mistake, you can delete and start again, and
• if you forget a day, you can make a new entry then drag and drop it to the correct position.

Note: I'm using the GBP pound symbol, but the calculator will work for any decimal-based currency.

Currency selector

I've added a currency selector which prints a currency symbol to the form number inputs and the table headers.

This is somewhat cosmetic, as the results will be the same whichever currency is chosen.

The chosen currency will be saved to local storage.

HTML

• template used for dynamic (table) rows.

The 'results' table container:

• has a max-height. When this is reached, vertical scrollbars appear.
• The results table container will start to scroll horizontally at around 420px width.

The 'results' table has a 'sticky' thead, so the table headers (ths) will always be on top when scrolling.

Javascript

• ES6 (no transpilation to ES5)
• Data is saved to local storage

CSS

• grid used for page layout.
• flexbox used for page elements.
• Responsive.

Testing

• Tested on:
  • Windows 10
    • Chrome
    • Firefox
    • Microsoft Edge