A fancy logger with a lot of customizations and blazingly fast speed!
- 🌟 Fancy Printer 🌟
- 📩 Installation 📩
-
🔧 Usage 🔧
- ✨ Creating a printer ✨
- ✨ Default tags ✨
- ✨ Creating tags ✨
- ✨ Formatting & Using/adding components & Changing the chr ✨
- ✨ Making the printer global ✨
- ✨ Logging to a specific file ✨
- ✨ Logging to a file periodically ✨
- ✨ Logging to a file with a hash ✨
- ✨ Substitutions ✨
- ✨ Utilities ✨
- ✨ Fast Styling ✨
- ✨ Presets ✨
- ✨ Logging Options ✨
npm install fancy-printer<script src="https://unpkg.com/fancy-printer/index.umd.min.js"></script>
<script>
Printer.log("Hello, world!");
</script>Or even with module scripts:
<script type="module">
import printer from "https://unpkg.com/fancy-printer/index.esm.min.js";
printer.log("test");
</script>const printer = require("fancy-printer");
const options = {
// some options...
};
const newPrinter = printer.create(options);
newPrinter.log("Hello, world!");
// OR just use it normally
printer.log("Hello, world!");printer.pass("Passed!");
printer.fail("Failed!");
printer.error("An error occurred!");
printer.warn("Something might go wrong!");
printer.info("This is a message!");
printer.debug("Check the line 5!");
printer.notice("Attention please!");
printer.log("An original log!");
printer.ready("I am ready!");
printer.assert(5 % 2 === 0, "5 is not divisible by 2!");
printer.tag("pass", "This worked as well!");
printer = printer.addTag("test", {text: "HEY!", background: "#bb7373", textColor: "#ffff00"});
printer.test("Hello, world!");
const DEFAULT_FORMAT = "$namespace$date $time $tag $text"; // this is the default format
printer.options.namespaceValue = "My namespace"
// OR
const newPrinter = printer.namespace("My new namespace!");
printer.options.namespaceValue = "";
printer.options.format = "$date $time $tag $text";
printer.info("Hello, world!");
printer.options.format = "$date $time $tag > $text";
printer.info("Hello, world!");
printer.options.format = "$date $time $tag $2plus2 $text";
printer.addComponent("2plus2", () => {
return 2 + 2;
});
printer.info("Hello, world!");
printer.options.componentSymbol = "!";
printer.options.format = "!date !time !tag !2plus2 !text";
printer.info("Hello, world!");
printer.options.format = "!filename&c:!line&c:!column or just [ !filename:!line:!column ] !date !time !tag !2plus2 !text";
printer.info("Hello, world!");
const myPrinter = printer.create()
.addTag("test") // do more stuff if needed, or just use the default
declare global {
let printer: typeof myPrinter;
}
myPrinter.makeGlobal();
// some file where printer isn't imported:
printer.info("test");
declare global {
// @ts-ignore
let console: typeof myPrinter;
}
printer.replaceConsole();
// Now you can use the static printer from `console`
console.info("test");printer.addFile("./myFile.txt");printer.makeLoggerFile();
// which makes a "logs" folder and puts a unique file in it to log into
// OPTIONAL:
printer.makeLoggerFile({
folder: "./myFolder/", // Default: logs. This is where the log files will be saved in.
format: "my log $DD-$MM-$YYYY.txt", // Default: log-DD-MM-YYYY.log. The format of the name of the file.
month: "long", // the type of the $month, expects: "numeric" | "2-digit" | "long" | "short" | "narrow"
day: "long", // the type of the $date variable, expects: "long" | "short" | "narrow"
});- Y: Year
- M: Month
- D: Day
- h: Hour
- m: Minute
- s: Second
- S: Millisecond
- month Gives the name of the month
- day Gives the name of the day
The length of the argument determines how long it should be.
For example if it's DD and if the day is 4, it becomes 04.
If it's YY and if the year is 2023, it becomes 23. (so it cuts from the end)
printer.makeHashedLoggerFile();
// which makes a "logs" folder and puts a unique file in it to log into
// OPTIONAL:
printer.makeHashedLoggerFile({
folder: "./myFolder/", // Default: logs. This is where the log files will be saved in.
radix: 16, // default 16, max 32. This is the time encoder setting
divide: 3, // Default: 3. Divides the current timestamp into 10^divide. For example 3 would divide it to 1000 which makes it depend on seconds.
format: "my log $t.txt" // Default: log-$t.log. The format of the name of the file. $t will be replaced by the time
});Puts the object into place by making it a string.
Note: %o and %O only works on objects. %s only works on strings. %v works on everything.
printer.log("Hello, %s!", "world");
Puts the integer into place.
printer.log("Hello, %d!", 12.34);
printer.log("Hello, %i!", 12.34);
Puts the floating number into place.
printer.log("Hello, %f!", 12.34);
Adds styling to the rest of the text. Uses CSS syntax.
printer.log("Hello, %cthis is red!%c and now it's blue!", "color: red", "color: blue");
| Property | Default | Expected type | Description |
|---|---|---|---|
| background or background-color | None | Color | The background color of the text |
| color | None | Color | The color of the text |
| font-weight | normal | normal | bold | bolder | A positive integer | The boldness of the text |
| text-decoration | none | underline | line-through | linethrough | strike-through | strikethrough | The decorations of the text. More than one can be used by separating with space |
| font-style | normal | normal | italic | oblique | The style of the text. |
printer.print("Hello, world!%c RED!", "color: red"); // No substitutions or text components will be used and won't break line.
printer.println("Hello, world!"); // Same as print, will break line.
printer.print("Hello! You!")
printer.backspace(5); // Erases 5 characters from the text written.
printer.cursorUp(5); // Moves 5 up.
printer.cursorRight(5); // Moves 5 right
printer.cursorDown(5); // Moves 5 down
printer.cursorLeft(5); // Moves 5 left
printer.clear(); // Clears the console
setInterval(() => {
printer.info("Trying to interrupt the input!");
}, 500);
// The interval above will be printed gracefully without messing up the input!
const response = await printer.readline("> ", {allowClear: true}); // allowClear: will allow CTRL+L to clear the screen
if (response === null) process.exit();
console.log(response);- NOTE: This feature is disabled by default! The first line will enable it:
printer.options.allowTextSubstitutions = true; // allows the input to use substitutions
printer.info(
"&0This is black",
"&1This is blue",
"&2This is green",
"&3This is cyan",
"&4This is red",
"&5This is purple",
"&6This is gold",
"&7This is gray",
"&8This is bold gray",
"&9This is light blue",
"&aThis is light green",
"&bThis is cyan",
"&cThis is light red",
"&dThis is pink",
"&eThis is yellow",
"&fThis is white",
"&lThis is bold",
"&mThis is strike-through",
"&nThis is underlined",
"&oThis is italic",
"&rThis will reset the styling",
"&tBack to the 'info' tag's text color"
);
printer.addStyle("&h", "color: red; background: yellow");
// OR
printer.addSubstitution("&h", printer.css("color: red; background: yellow"));
printer.info("my own styling starts &hnow! yay!");
This preset basically stops putting a line break at the end of logs.
Can be achieved by doing printer.options.end = "" or just using the existing preset:
inline.inline.log("Hello, ");
inline.inline.print("world!");
This preset is a custom preset requested by a user.
Can be achieved by using the preset:
const {brackets} = printer;
brackets.pass("Passed!");
brackets.fail("Failed!");
brackets.error("An error occurred!");
brackets.warn("Something might go wrong!");
brackets.info("This is a message!");
brackets.debug("Check the line 5!");
brackets.notice("Attention please!");
brackets.log("An original log!");
brackets.ready("I am ready!");
brackets.assert(5 % 2 === 0, "5 is not divisible by 2!");
Base options:
| Key | Default | Expected type | Description |
|---|---|---|---|
| format | "$namespace$date $time $tag $text" | string | The format of the log. |
| componentSymbol | "$" | string | The symbol used to access components in the format. |
| namespaceValue | "" | string | The value of the namespace component. |
| allowSubstitutions | true | boolean | Whether to allow substitutions in the format. |
| allowTextSubstitutions | false | boolean | Whether to allow substitutions in the text. |
| end | "\n" | string | The ending character of the log. |
| sep | " " | string | The separator between given texts. |
Default components: pass, fail, error, warn, info, debug, notice, log, ready, assert.
Every component has these options:
| Key | Default | Expected type | Description |
|---|---|---|---|
| color | "" | Color(string) | The text color of the component |
| background | "" | Color(string) | The background color of the component |
| bold | true | boolean | Whether the component is bold or not |
| italic | false | boolean | Whether the component is italic or not |
| underline | false | boolean | Whether the component is underlined or not |
| strikethrough | false | boolean | Whether the component is struck-through or not |
| padding | 2 | number | The padding of the component |
Which can be accessed like so:
printer.options.pass.italic = true;
// OR
printer.setOptions({
pass: {
italic: true
}
});| Key | Default | Expected type | Description |
|---|---|---|---|
| date.localeMatcher | "best fit" | "best fit" or "lookup" | The locale matcher for the date component |
| date.weekday | "long" | "long" or "short" or "narrow" | The weekday type for the date component |
| date.era | "long" | "long" or "short" or "narrow" | The era type for the date component |
| date.year | "numeric" | "numeric" or "2-digit" | The year type for the date component |
| date.month | "short" | "numeric" or "2-digit" or "long" or "short" or "narrow" | The month type for the date component |
| date.day | "numeric" | "numeric" or "2-digit" | The day type for the date component |
| date.hour | undefined | "numeric" or "2-digit" | The hour type for the date component |
| date.minute | undefined | "numeric" or "2-digit" | The minute type for the date component |
| date.second | undefined | "numeric" or "2-digit" | The second type for the date component |
| date.timeZoneName | undefined | "short" or "long" or "shortOffset" or "longOffset" or "shortGeneric" or "longGeneric" | The time zone name type for the date component |
| date.formatMatcher | undefined | "best fit" or "basic" | The format matcher for the date component |
| date.hour12 | undefined | boolean | Whether the date component should use 12-hour format or not |
| date.timeZone | undefined | string | The time zone for the date component |
| filename.base | "" | string | The base folder to be truncated |
| filename.basename | true | boolean | Whether the filename component should show only the basename or not |
| filename.extension | true | boolean | Whether the filename component should show the extension or not |
| time.hour12 | false | boolean | Whether the time component should use 12-hour format or not |
| time.date | false | boolean | Whether the time component should show the date or not |
| time.hour | true | boolean | Whether the time component should show the hour or not |
| time.minute | true | boolean | Whether the time component should show the minute or not |
| time.second | true | boolean | Whether the time component should show the second or not |
| time.millisecond | false | boolean | Whether the time component should show the millisecond or not |
| time.hourLength | 2 | number | The maximum length of the hour part of the time component |
| time.minuteLength | 2 | number | The maximum length of the minute part of the time component |
| time.secondLength | 2 | number | The maximum length of the second part of the time component |
| time.millisecondLength | 3 | number | The maximum length of the millisecond part of the time component |
| uptime.day | false | boolean | Whether the uptime component should show the day or not |
| uptime.hour | true | boolean | Whether the uptime component should show the hour or not |
| uptime.minute | true | boolean | Whether the uptime component should show the minute or not |
| uptime.second | true | boolean | Whether the uptime component should show the second or not |
| uptime.millisecond | true | boolean | Whether the uptime component should show the millisecond or not |
| uptime.dayLength | 2 | number | The maximum length of the day part of the uptime component |
| uptime.hourLength | 2 | number | The maximum length of the hour part of the uptime component |
| uptime.minuteLength | 2 | number | The maximum length of the minute part of the uptime component |
| uptime.secondLength | 2 | number | The maximum length of the second part of the uptime component |
| uptime.millisecondLength | 2 | number | The maximum length of the millisecond part of the uptime component |
| namespace.before | "" | string | The text to be put before namespace component if it's not empty. |
| namespace.after | " " | string | The text to be put after namespace component if it's not empty. |