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David Walsh Tutorials

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    JavaScript in SVGs

    SVGs are such an amazing tool for creating custom fonts, animations, size-reduced graphics, and more. They're part HTML, part image, and all awesome. Many websites have moved toward SVG instead of JPG, GIF, and PNG due to the flexibility that SVG provides.Whats one example...

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    CSS background-repeat: round

    The CSS spec is full of gems that sneak their way past most of us web designers and developers. Stuff like :focus-within, prefers-reduced-motion, and prefers-color-scheme suddenly make their way into CSS without us really finding out for months or years. One such...

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    Kotlin Coroutines and Delay

    Whenever I suspect that there's a timing conflict causing a problem with rendering and directives, I usually opt for a JavaScript setTimeout with a delay. The setTimeout code never makes it to production, but it does help me to understand if my code is the...

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    3 Great Ways to Monetize Content

    Monetizing content on the web usually boils down to one thing: advertisements. The problem with adding advertisements to your website, especially from the popular ad services, is that they can be slow and they certainly don't protect user privacy. That's where alternative monetizing opportunities come into...

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    Offscreen Text for Copy & Paste

    The relationship between HTML and CSS is special: mixing content via HTML with presentation from CSS to make an awesome presentation. Sometimes, however, you need to employ CSS tricks solely to enhance functionality. This could be one of those cases.When browsing through the Firefox...

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    Unlock Your Mac with Apple Watch

    I convinced myself six months ago that I needed to give the Apple Watch a try. While I wear it every day and enjoy a few features, I've felt a bit let down by the experience. I do, however, believe that the Apple Watch...

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    Free SSL Certificates with ZeroSSL

    During my early years in web development, one of the most costly and annoying tasks was securing and installing security certificates on client websites. Most providers charged hundreds of dollars for SSL certs and getting them configured properly was a huge source of stress. Securing...

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    How to Fix ESLint Errors Upon Save in VS Code

    Two of the most prominent utilities in web development today are ESLint and Microsoft's Visual Studio Code. I enjoy using both, and I love the integration between both tools, but warnings from ESLint inside Visual Studio Code aren't fulfilling -- I'd rather lint errors be...

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    How to Display Mode-Specific Images

    Now that we have most of the basics of HTML and CSS in the browser, we've begun implementing new features that I would consider "quality of life" improvements, many of which have been inspired by mobile. One great example is the CSS prefers-color-scheme media...

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    Track Your Keyword Placement with Ranktrackify

    I don't need to tell you how important search engine placement is. You either earn it with quality content, loads of SEO work, paying for placement, or all of the above. And even we you achieve best placement, you need to be wary of...