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https://gitee.com/openharmony/global_i18n
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50 lines
2.0 KiB
Markdown
Executable File
50 lines
2.0 KiB
Markdown
Executable File
# i18n<a name="EN-US_TOPIC_0000001101364976"></a>
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- [Introduction](#section11660541593)
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- [Directory Structure](#section1464106163817)
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- [Constraints](#section1718733212019)
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- [Usage](#section894511013511)
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- [Repositories Involved](#section15583142420413)
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## Introduction<a name="section11660541593"></a>
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The i18n module provides a wide array of internationalization \(i18n\) APIs for implementing functions such as date and time formatting.
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## Directory Structure<a name="section1464106163817"></a>
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The directory structure for the i18n module is as follows:
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```
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/base/global/
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├── i18n_standard # Code repository for the i18n framework
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│ ├── frameworks # Core code of the i18n framework
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│ ├── interfaces # APIs
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│ │ ├── js # JavaScript APIs
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│ │ └── native # Native APIs
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```
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## Constraints<a name="section1718733212019"></a>
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**Development language**: JavaScript
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**Language, script, and country codes**: The supported language must be represented by a two- or three-letter code defined in the ISO 639 standard; the supported script must be represented by a four-letter code defined in the ISO 15924 standard; the supported country must be represented by a two-letter code defined in the ISO 3166 standard.
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## Usage<a name="section894511013511"></a>
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Change the date and time formats \(such as the sequence of year, month, and day, month and week names, and 12-hour or 24-hour system\) following the system settings to adapt to the cultural habits of users in different locales. For details, see the API reference. The sample code is as follows:
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```
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const date = new Date(2021, 11, 17, 3, 24, 0); // Create a Date object containing date and time information.
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fmt = new Intl.DateTimeFormat('en-US') // Create a DateTimeFormat instance.
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console.log(fmt.format(date)); // Format the date and time by using the DateTimeFormat instance.
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```
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## Repositories Involved<a name="section15583142420413"></a>
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Globalization subsystem
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**global\_i18n\_standard**
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global\_resmgr\_standard
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