Code smells in css

images code smells in css

Yes, nothing tangible presented here. Dangerous selectors A dangerous selector is one with far too broad a reach. For example, you have analyzed the document specification, discussed with the your Business Analyst along with your clients and finally, reached a consensus that the error message is display in red color. All this can be avoided by using much stricter class names. More like 10 lines of CSS and one super ugly class name. It is said that IDs in HTML can be used for fragment identifiers and JS hooks but never in CSS because: IDs can never be used more than once in a page, which significantly reduces reusability while classes can exist only once or a million times. The header element does not bear the meaning of 'your site's main header' and, as per the specification, the header element can be used multiple times in multiple contexts. A lot better? Such class name is bad and here are the reasons why: You can't necessarily glean its purpose based on the class name alone. The example gives us all h3 s our usual font-size and margin for spacing, but also a bit of padding and border-bottom in order to visually separate it from the next element on the same page.

  • Code Smells in CSS CSSTricks
  • CSS Code Smells CSSTricks

  • also known as bad.

    Code Smells in CSS CSSTricks

    How can you tell if your CSS code smells? What are the signs that the code is sub-optional, or that the developer hasn't done a good job? An update to my article, Code Smells in CSS.
    There is nothing "morally wrong", it is just that you might have probably applied them too early and hastily.

    images code smells in css

    But sometimes, you action might cause catastrophic consequences. The next developer who is more cautious decides to try and fix the problem without touching that magic number.

    Video: Code smells in css Dino Esposito. Refactoring and Code Smells. .NET Fest 2018

    You can't necessarily glean its purpose based on the class name alone. Rulesets should only inherit and add to the previous ones, never undo. A modified version of h3 with no border and padding? And don't forget the problem of cross browser.

    images code smells in css
    Code smells in css
    It should be line-height: 1. A loose class name is one that is not specific enough to define what is its purpose.

    That number only works in one situation Look at the following piece of scss code:. Rulesets should only inherit and add to the previous ones, never undo. IDs in CSS are a bad idea because they heightened specificity and are of no use to anyone.

    I suppose I now have another question, but this time for you: what do you see as a code smell in CSS?

    What is bad CSS? What is really good.

    Harry Roberts, Code Smells in CSS, Part 1: Undoing Styles Magic Numbers Qualified Selectors Absolute Values Brute Forcing Dangerous. Harry Roberts knows his way around a stylesheet, that's for sure. This is a follow up to a article on your CSS code smelling (bad) and.
    Eight lines. A hard-coded value might be something like this:. They not only does confuse other developers, but also can neither be explained nor trusted her developers.

    You can't necessarily glean its purpose based on the class name alone. Bad smell.

    Normally when you try to qualify something, it is often for good purpose.

    images code smells in css
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    This type of CSS indicates that either a poorly-coded layout that requires this kind of manipulation or the developers lack of understanding about box-model and layout.

    Hard-coded values are not very future proof, flexible or forgiving, and thus should be avoided. Brute forcing This one is in a similar vein to hard-coded numbers, but a little more specific. IDs can often have their traits abstracted out into many reusable classes for example, instead of success-notificationwe might divided into. So this rule is totally fine:.

    Besides, when the site gets ported over to HTML5 - the header div can be quickly swapped out with a header element without us worrying without worrying about invalidating any styles.

    Putting it together, it is really confusing.

    Thus today, I bring you some patterns in CSS considered CSS code smells that I have run into in my.

    images code smells in css

    CSS files should not be empty. Code Smell · Selectors should not be duplicated. Code Smell · Empty blocks should be removed.

    Video: Code smells in css Code Refactoring: Learn Code Smells And Level Up Your Game!

    Code Smell · Strings should not. This thesis presents a large empirical study of code smells in Cascading. Style Sheets (CSS) conducted by the author under the supervision of Dr. Ali Mesbah.
    Coded layouts should never need brute-forcing. So this rule is totally fine:.

    images code smells in css

    Is it a notification board like Facebook? It it is, then a clearer name like. Putting it together, it is really confusing.

    images code smells in css
    SYNKINESIS SYMPTOMS OF MONO
    Just the smell.

    By not doing so, you can:. Selectors like theses are way, way to far reaching and will ultimately lead to undoing CSS, as per the section previously.

    CSS Code Smells CSSTricks

    IDs can often have their traits abstracted out into many reusable classes for example, instead of success-notificationwe might divided into. For example, you have analyzed the document specification, discussed with the your Business Analyst along with your clients and finally, reached a consensus that the error message is display in red color. A loose class name is one that is not specific enough to define what is its purpose. Like these: ul.

    4 comments

    4 thoughts on “Code smells in css”

    1. The next developer who is more cautious decides to try and fix the problem without touching that magic number.

    2. This will instantly scream at any developer. Not unlike magic numbers, hard-coded values are also bad news.