I’m a big fan of vertical whitespace, and find it strange that more fuss is made of tabs vs spaces (which doesn’t really affect readability) than vertical spacing (which does).
Here’s a simple code example, randomly picked:
$max_width = intval( get_option( 'thumbnail_size_w' ) );
$max_height = intval( get_option( 'thumbnail_size_h' ) );
// last chance thumbnail size defaults
if ( ! $max_width && ! $max_height ) {
$max_width = 128;
$max_height = 96;
}
Compared to:
$max_width = intval( get_option( 'thumbnail_size_w' ) );
$max_height = intval( get_option( 'thumbnail_size_h' ) );
// last chance thumbnail size defaults
if ( ! $max_width && ! $max_height ) {
$max_width = 128;
$max_height = 96;
}
That single extra line makes such a difference when scanning code. Imagine trying to read a book with no paragraphs.
John's Blog 
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