2019-10-17 改造原始的cht查询到的unicodeEn

search by cht nodejs Chinese to unicode and get below info:

function convert(s) {
  return s.split('').map(function(c) {
    return '\\u' + ('0000' + c.charCodeAt(0).toString(16).toUpperCase()).slice(-4);
  }).join('');
}

var s = '字符串';
s="time out"
const encodeStr = convert(s)
console.log(encodeStr);

refactor the function to my tool js and quick test the selected content in vscode by "ctrl+alt+n" shortcut provided by Code Runner

const unicodeencode = originalStr => {
  return originalStr
    .split("")
    .map(c => {
      return (
        "\\u" +
        (
          "0000" +
          c
            .charCodeAt(0)
            .toString(16)
            .toUpperCase()
        ).slice(-4)
      );
    })
    .join("");
};

const unicodeEncodeTest = inputStr => {
  let s = "字符串";
  let encodeStr = unicodeencode(s);
  console.log(encodeStr);
  s = "time out";
  encodeStr = unicodeencode(s);
  console.log(encodeStr);
};

// unicodeEncodeTest();

now use it in my nodejs cli tool

27617 $ cli --ue wode
{ unicodeencode: 'wode' }
2019-10-17T07:39:28.850Z npmCli key:unicodeencode, value: wode
2019-10-17T07:39:28.850Z npmCli \u0077\u006F\u0064\u0065

the cli configuration is as simple as adding one option now (since I have make it auto call any function name)

  .option("--ue, --unicodeencode [word]", "unicodeencode the string")

here comes the incredible way to make nodejs cli tool auto call any function provided by tool js

const program = require("commander");
....
//filter the program object key to find the user input ones via cli
const checkin = _(program)
  .pickBy((v, p) => {
    return (v === true || _.isString(v)) && !/^_/gi.test(p);
  })
  .value();

//if user input cli option name matches any function name in tool js, then call it
} else if (!_.isEmpty(checkin)) {
  _(checkin).forIn((value, key) => {
    cli.debug(`key:${key}, value: ${value}`);
    clicmd = cli[key];
    const result = clicmd(value);
    if (result) cli.debug(result);
  });
} else {
  program.outputHelp();
  process.exit(1);
}