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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )
apply_filters( "hook_name", "what_to_filter" )
.Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
This hook occurs 2 times in this file.
Line | Code |
---|---|
138 | if ( $this->do_concat ) { |
139 | /** |
140 | * Filter the script loader source. |
141 | * |
142 | * @since 2.2.0 |
143 | * |
144 | * @param string $src Script loader source path. |
145 | * @param string $handle Script handle. |
146 | */ |
147 | $srce = apply_filters( 'script_loader_src', $src, $handle ); |
148 | if ( $this->in_default_dir( $srce ) && ! $conditional ) { |
149 | $this->print_code .= $this->print_extra_script( $handle, false ); |
150 | $this->concat .= "$handle,"; |
151 | $this->concat_version .= "$handle$ver"; |
152 | return true; |
153 | } else { |
154 | $this->ext_handles .= "$handle,"; |
155 | $this->ext_version .= "$handle$ver"; |
156 | } |
Line | Code |
170 |
|
171 | if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $this->content_url && 0 === strpos( $src, $this->content_url ) ) ) { |
172 | $src = $this->base_url . $src; |
173 | } |
174 |
|
175 | if ( ! empty( $ver ) ) |
176 | $src = add_query_arg( 'ver', $ver, $src ); |
177 |
|
178 | /** This filter is documented in wp-includes/class.wp-scripts.php */ |
179 | $src = esc_url( apply_filters( 'script_loader_src', $src, $handle ) ); |
180 |
|
181 | if ( ! $src ) |
182 | return true; |
183 |
|
184 | $tag = "{$cond_before}<script type='text/javascript' src='$src'></script>\n{$cond_after}"; |
185 |
|
186 | /** |
187 | * Filter the HTML script tag of an enqueued script. |
188 | * |