a-node-tools

A purely functional tool that includes

• nodes use

language

install

npm install   a-node-tools  --save

file

• readFileToJson read .json file and return JSON or null
• readFileToJsonSync synchronous read .json file and return JSON or null
• fileExist Does the file exist
• dirEmpty Does the director is empty
• writeJsonFile 把 json Write data to a blank file

runOtherCode section

• runOtherCode Run other code
• RunOtherCodeParam Declaration of parameter types for running other code

npmPkg section

• npmPkgInfoType type of getNpmPkgInfo returns
• getNpmPkgInfo get npm package info
• testNpmPackageExist test a npm package is exist

path section

• pathJoin File address concatenation
• pathBasename Provide file path to obtain file name, without file type suffix
• initializeFile Initialize the paths __filename and __dirname , as they can only be used in the cjs file. They are initialized here and are compatible
• getCallerFilename Get the file that calls the function
• isWindows Is it currently in a Windows environment, used to address the differences caused by different time separators when using 'path'
• • getDirectoryBy Find the parent directory of the target based on its file or file name

cursor section

You can use cursor to manipulate the cursor position:

| Method | Schematic | Parameters | | :---------------------: | :-------------------------: | :---------------------------------------------------: | | t | \u001B | -- | | _p | on node environment print | r print string; lineFeed line feed,default true | | cursorHide | cursor hide | -- | | cursorShow | cursor show | -- | | cursorPositionSave | Store cursor position | -- | | cursorPositionRestore | Restores cursor position | -- | | cursorMoveUp | cursor Up | numberOfUpwardMoves offset, default to 1 | | cursorMoveDown | cursor Down | numberOfMovesDown offset, default to 1 | | cursorMoveLeft | cursor Left | numberOfLeftShifts offset, default to 1 | | cursorMoveRight | cursor Right | numberOfRightShifts offset, default to 1 | | cursorAfterClear | clear all after cursor | -- |

readInput section

A function waiting for user input. Because it needs to wait, it is asynchronous, and when using it, wait should be used

import { readInput } from "a-node-tools";

const callBackFunction = (keyValue: string | undefined, key: any) => {
  if (key.name && key.name == "return") return true;
  else
    return console.log(
      `Try a different key, this key (${keyValue}) do not execute exit`
    );
};

Color section

The string color value of the terminal (meaning it cannot be used in a browser environment, (in fact, browsers have a simpler implementation method) :

Color static method

| method | rgb 色值 | ｜ Hexadecimal color value | | :---------------: | :------------------: | :------------------------: | | fromHexadecimal | --- | --- | | fromRgb | --- | --- | | random | --- | --- | | darkBlack | rgb(86 ,86 ,86) | #565656 | | darkRed | rgb(181 ,40 ,29) | #b5281d | | darkGreen | rgb(50 ,181 ,32) | #32b520 | | darkYellow | rgb(160 ,160 ,29) | #a0a01d | | darkBlue | rgb(64 ,10 ,217) | #400ad9 | | darkMagenta | rgb(201 ,24 ,201) | #c918c9 | | darkCyan | rgb(45 ,174 ,187) | #2daebb | | darkWhite | rgb(193 ,193 ,193) | #c1c1c1 | | lightBlack | rgb(111 ,111 ,111) | #6f6f6f | | red | rgb(252 ,33 ,25) | #fc2119 | | green | rgb(47 ,232 ,26) | #2fe81a | | yellow | rgb(232 ,236 ,20) | #e8ec14 | | blue | rgb(74 ,3 ,254) | #4a03fe | | magenta | rgb(251 ,0 ,253) | #fb00fa | | cyan | rgb(255 ,255 ,255) | #ffffff |

use Color

import { Color, _p } from 'a-node-tools';

/** `_Color` does not necessarily have to ce used together with `_p` ，`_p` is just the encapsulation of `process.stdout.write` */

_p(
  `${Color.red(
    `Red start${Color.yellow('The middle is yellow')} and the red ending`,
  )}`,
);

_p(Color.random('Randomly print a string of color values'));

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