Frontend Mentor - Calculator app solution

This is a solution to the Calculator app challenge on Frontend Mentor. Frontend Mentor challenges help you improve your coding skills by building realistic projects.

Table of contents

• Frontend Mentor - Calculator app solution
  • Table of contents
  • Overview
    • The challenge
    • Screenshot
    • Links
  • My process
    • Built with
    • What I learned
    • Continued development
    • Useful resources
  • Author

Overview

The challenge

Users should be able to:

• See the size of the elements adjust based on their device's screen size
• Perform mathmatical operations like addition, subtraction, multiplication, and division
• Adjust the color theme based on their preference
• Bonus: Have their initial theme preference checked using prefers-color-scheme and have any additional changes saved in the browser

Screenshot

Mobile:📱📱

Desktop💻🖥

Links

• Solution URL: My solution

• Live Site URL: githubPages

My process

Built with

• Semantic HTML5 markup
• CSS custom properties
• Flexbox
• CSS Grid
• Mobile-first workflow
• Vue - JS framework
• Sass - For styles

What I learned

I learned how to use the eval()-function to run javascript code in HTML. This is my first challenge using vue, so I got to practice and learn some more about how to use it without the CLI.

To see how you can add code snippets, see below:

.calculator__bottom {
    border-radius:20px;
    background:$KeypadBg1;
    .row {
        justify-content: center;
    }
    .grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .calculator__buttons {
        width:90%;
        input {
            border:0;
            border-radius:10px;
            box-shadow: 0px 4px 0px 0px $KeyShadow1;
            background:$KeyBg1;
            color:$KeyText1;
            padding:.5em;
            font-size: 32px;
            font-weight:700;
            cursor:pointer;
            &:hover {
                background:$White1;
            }
        }
    }

toggleOpen() {
        this.i++;
        if(this.i == 2 )  {
            document.body.classList.remove(`${this.theme[0]}`);
            this.$refs.slider.style.gridColumnStart = "2";
            document.body.classList.add(`${this.theme[1]}`);
        }
        if(this.i == 4 )  {
            document.body.classList.remove(`${this.theme[1]}`);
            this.$refs.slider.style.gridColumnStart = "3";
            document.body.classList.add(`${this.theme[2]}`);
            
        }
        if(this.i > 5 )  {
            this.i = 0;
            document.body.classList.remove(`${this.theme[2]}`);
            this.$refs.slider.style.gridColumnStart = "1";
            document.body.classList.add(`${this.theme[0]}`);
    
        }
      }

Continued development

I will try to perfect my vue and javascript skills, by continuing to learn about new ways to use them. After that I want to brush up on my basic python skills.

Useful resources

• calculator-app tutorial - This helped me with the programming part of the calculator. It's a very simple tutorial, which helped me a lot.
• W3Schools.com - This is an amazing website which helped me when I forgot how to use a certain piece of code, like how to loop over something and etc.
• vuejs.org - This helped me when I was unsure about how to use something in vue.

Author

• Website - My website)
• Frontend Mentor - @purplehippo911
• CodePen - @htmlsquid