How to change tag Title to its name?

Question

i have previously asked it in stackoverflow, but there was no answer!
I wish to change the title of Tags pages of my wordpress blog. What I want to do is to keep the Tag name as it's title only.

For example: If a tag name is "Wordpress Tag Pages Tutorial" then that tag should have the same title "Wordpress Tag Pages Tutorial" instead of "Blog Name - Wordpress Tag Pages Tutorial" so what to change in this code? I have tried but showing errors like only variables name in wordpress title.

<title>
<?php if (is_home () ) { bloginfo('name'); }elseif ( is_category() ) {
single_cat_title(); echo ' - ' ; bloginfo('name'); }
elseif (is_single() ) { single_post_title();}
elseif (is_page() ) { bloginfo('name'); echo ': '; single_post_title();}
else { wp_title('',true); } ?>

please see this screen-cast https://i.sstatic.net/Ai9JU.png

Answer 1

Use …

if ( is_tax( 'post_tag' ) )
    echo single_term_title();

I would just call a naked wp_title() and change that title per filter. See example 1, 2 and 3.