WP_Scripts::set_translations( string $handle, string $domain = 'default', string $path = null )

Sets a translation textdomain.

Parameters

$handle

(string) (Required) Name of the script to register a translation domain to.

$domain

(string) (Optional) Text domain.

Default value: 'default'

$path

(string) (Optional) The full file path to the directory containing translation files.

Default value: null

Return

(bool) True if the text domain was registered, false if not.

Source

File: wp-includes/class.wp-scripts.php 

public function set_translations( $handle, $domain = 'default', $path = null ) {
		if ( ! isset( $this->registered[ $handle ] ) ) {
			return false;
		}

		/** @var \_WP_Dependency $obj */
		$obj = $this->registered[ $handle ];

		if ( ! in_array( 'wp-i18n', $obj->deps, true ) ) {
			$obj->deps[] = 'wp-i18n';
		}

		return $obj->set_translations( $domain, $path );
	}

Changelog

Version Description
5.1.0 The $domain parameter was made optional.
5.0.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/classes/wp_scripts/set_translations