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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.
| Line | Code |
|---|---|
| 2160 | * |
| 2161 | * @param string $text The text to be escaped. |
| 2162 | * @return string Escaped text. |
| 2163 | */ |
| 2164 | function esc_js( $text ) { |
| 2165 | $safe_text = wp_check_invalid_utf8( $text ); |
| 2166 | $safe_text = _wp_specialchars( $safe_text, ENT_COMPAT ); |
| 2167 | $safe_text = preg_replace( '/&#(x)?0*(?(1)27|39);?/i', "'", stripslashes( $safe_text ) ); |
| 2168 | $safe_text = preg_replace( "/\r?\n/", "\\n", addslashes( $safe_text ) ); |
| 2169 | return apply_filters( 'js_escape', $safe_text, $text ); |
| 2170 | } |
| 2171 | |
| 2172 | /** |
| 2173 | * Escape single quotes, specialchar double quotes, and fix line endings. |
| 2174 | * |
| 2175 | * The filter 'js_escape' is also applied by esc_js() |
| 2176 | * |
| 2177 | * @since 2.0.4 |
| 2178 | * |