The **hilog** module allows your applications or services to output logs based on the specified type, level, and format string. Such logs help you learn the running status of applications and better debug programs.
The HiLog subsystem allows your applications or services to output logs based on the specified type, level, and format string. Such logs help you learn the running status of applications and better debug programs.
> **NOTE**<br>
> **NOTE**
>
> The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
## Modules to Import
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@@ -23,7 +24,7 @@ Checks whether logs are printable based on the specified service domain, log tag
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required.|
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| DEBUG | 3 | Log level used to record more detailed process information than INFO logs to help developers analyze service processes and locate faults.|
| INFO | 4 | Log level used to record key service process nodes and exceptions that occur during service running,<br>for example, no network signal or login failure.<br>These logs should be recorded by the dominant module in the service to avoid repeated logging conducted by multiple invoked modules or low-level functions.|
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@@ -67,9 +68,9 @@ DEBUG logs are not recorded in official versions by default. They are available
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required.|
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several parameters, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **<private>**.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several elements, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **\<private>**.|
| args | any[] | Yes | Variable-length parameter list corresponding to the format string. The number and type of parameters must map to the identifier in the format string.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required. |
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several parameters, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **<private>**.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several elements, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **\<private>**.|
| args | any[] | Yes | Variable-length parameter list corresponding to the format string. The number and type of parameters must map to the identifier in the format string.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required. |
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several parameters, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **<private>**.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several elements, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **\<private>**.|
| args | any[] | Yes | Variable-length parameter list corresponding to the format string. The number and type of parameters must map to the identifier in the format string.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required. |
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several parameters, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **<private>**.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several elements, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **\<private>**.|
| args | any[] | Yes | Variable-length parameter list corresponding to the format string. The number and type of parameters must map to the identifier in the format string.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**. You can define the value within your application as required.|
| domain | number | Yes | Service domain of logs. The value ranges from **0x0** to **0xFFFF**.<br>You can define the value as required. |
| tag | string | Yes | Log tag in the string format. You are advised to use this parameter to identify a particular service behavior or the class holding the ongoing method.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several parameters, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **<private>**.|
| format | string | Yes | Format string used to output logs in a specified format. It can contain several elements, where the parameter type and privacy identifier are mandatory.<br>Parameters labeled **{public}** are public data and are displayed in plaintext; parameters labeled **{private}** (default value) are private data and are filtered by **\<private>**.|
| args | any[] | Yes | Variable-length parameter list corresponding to the format string. The number and type of parameters must map to the identifier in the format string.|
**Example**
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@@ -209,3 +210,43 @@ If `"hello"` is filled in `%{public}s` and `3` in `%{private}d`, the output log
```
08-05 12:21:47.579 2695-2703/com.example.myapplication F 00001/testTag: hello World <private>
```
## Parameter Format
Parameters in the log are printed in the following format:
%[private flag]specifier
| Privacy Flag| Description|
| ------------ | ---- |
| Unspecified | The default value is **private**, indicating that parameters in plaintext are not printed.|
| private | Prints private parameters.|
| public | Prints parameters in plaintext.|
| Specifier| Description| Example|
| ------------ | ---- | ---- |
| d/i | Prints logs of the **number** and **bigint** types.| 123 |
| s | Prints logs of the **string undefined bool** and **null** types.| "123" |
| type | string | Yes | Yes | Format type of a phone number. The available options are as follows: E164, INTERNATIONAL, NATIONAL, and RFC3966.|
| type | string | Yes | Yes | Format type of a phone number. The available options are as follows: E164, INTERNATIONAL, NATIONAL, and RFC3966.<br>- In API version 8, **type** is mandatory.<br>- In API version 9 or later, **type** is optional.|
## UnitInfo<sup>8+</sup>
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@@ -1786,8 +1786,8 @@ Obtains a list of IDs supported by the **Transliterator** object.
**Example**
```ts
// ids = ["ASCII-Latin", "Accents-Any", "Amharic-Latin/BGN", ...], 671 IDs supported in total
// Each ID consists of two parts separated by a hyphen (-). The format is source-destination.
// A total of 671 IDs are supported. One ID is comprised of two parts separated by a hyphen (-) in the format of source-destination. For example, in **ids = ["Han-Latin","Latin-ASCII", "Amharic-Latin/BGN","Accents-Any", ...]**, **Han-Latin** indicates conversion from Chinese to Latin, and **Amharic-Latin** indicates conversion from Amharic to Latin.
// For more information, see ISO-15924.
letids=I18n.Transliterator.getAvailableIDs();
```
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@@ -2210,6 +2210,157 @@ Enumerates text normalization modes.
