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Gets the localized string for the specified message.
Syntax
chrome.i18n.getMessage( messageName, // string substitutions // optional any )
This API is also available as browser.i18n.getMessage().
Parameters
messageNamestring. The name of the message, as specified in the messages.json file. If the message can't be found in messages.json:-
- Firefox returns ""??" and logs an error
- Chrome returns "" and does not log an error.
substitutionsOptionalstringorarrayofstring. A single substitution string, or an array of substitution strings.- In Chrome, if you supply more than 9 substitution strings,
getMessage()will returnundefined.
Return value
string. Message localized for current locale.
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Chrome | Edge | Firefox | Firefox for Android | Opera | |
|---|---|---|---|---|---|
| Basic support | Yes | Yes | 45.0 | 48.0 | 33 |
Examples
Get the localized string for "messageContent", with target.url substituted:
var message = chrome.i18n.getMessage("messageContent", target.url);
console.log(message);
This would work with a _locales/en/messages.json file containing:
{
"messageContent": {
"message": "You clicked $URL$.",
"description": "Tells the user which link they clicked.",
"placeholders": {
"url" : {
"content" : "$1",
"example" : "https://developer.mozilla.org"
}
}
}
}
If target.url is "https://developer.mozilla.org", then the value of message, in the "en" locale, would be:
"You clicked https://developer.mozilla.org."
Example add-ons
This API is based on Chromium's chrome.i18n API. This documentation is derived from i18n.json in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
// Copyright 2015 The Chromium Authors. All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * Redistributions in binary form must reproduce the above // copyright notice, this list of conditions and the following disclaimer // in the documentation and/or other materials provided with the // distribution. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.