Value of whitespace in html source code_问答_开发者

开发者 https://www.devze.com 2022-12-21 14:30 出处：网络

I\'m using a function to generate all output in php. Using that function I can control whether to display the code like this:

I'm using a function to generate all output in php. Using that function I can control whether to display the code like this:

<html><header></header>&l开发者_如何学JAVAt;body><p>Hello World!</p></body></html>

or like this

<html>
<header>
</header>
<body>
    <p>Hello World!</p>
</body>
</html>

including the indentation and all.

Is there a particular value to displaying the code indented and spaced (besides seemingly slower loading time)? I usually don't need to view the source code, since I can simply access the PHP file. During development I would most likely prefer whitespace, but when on production would it necessarily be advantageous?

Thanks!

I'd space it out if you have the option, there's nothing wrong with white-space to make something readable, and with GZip it makes the download difference not all that major anyway. You never know when you'll have to debug a style, it'll save you time later by having it pretty now, trust me.

All whitespace is condensed to a single space, rather than nothing, so there is a slight difference. For example:

<img src="image.jpg"><img src="image2.jpg">

Will produce slightly different results to this:

<img src="image.jpg">
<img src="image2.jpg">

So at a minimum, use a single space/newline between tags. Personally I prefer using spacing on live sites because it aids live debugging, and when using gzip the difference between space and no-space is tiny anyway.

And of course, it would also help budding new developers who might like to see "how it was done".

I prefer to omit whitespaces, especially in production.

You can still view the code through Firebug. there is no reason to do "view source".

Note that spaces can cause some problems, because they are considered as a space.

If you strip out whitespace you'll rue your parsimonious nature one day when you have to View Source in Internet Explorer on some remote client machine and have to wade through a swamp of HTML tags.

Whitespace will unnecessarily accumulate network bandwidth. No, GZIP won't fix it up to with 100%. I myself trim all the whitespace from the response and then pass it through GZIP. The only ones who cares about whitespace in HTML source are webdevelopers who are curious how the page source look like. They are really not worth the waste of network bandwidth --unless you're practically the only visitor ;)

Is Javascript or PHP generating your Html? Either way - utilize an escape character.

\n = new line

\t = tab

\r = carriage return

<?php echo "This is a test. <br> \n"; ?>

Value of whitespace in html source code

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