<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="test.js"></script>
</head>

<body>
  <div class="tab-contents">
    <ul class="tab-head">
      <li class="tab-head--category-name tab-current" data-catParent="creation">ウェブサイト制作</li>
      <li class="tab-head--category-name" data-catParent="promotion">プロモーション</li>
      <li class="tab-head--category-name" data-catParent="operation">運営・更新・保守</li>
    </ul>
    <div class="tab-content">
      <div class="tab-content--child tab-current" data-catChild="creation">
        <p>Menu1(ウェブサイト制作)</p>
        <p>Menu2(ウェブサイト制作)</p>
        <p>Menu3(ウェブサイト制作)</p>
      </div>
      <div class="tab-content--child displayNone" data-catChild="promotion">
        <p>Menu1(プロモーション)</p>
        <p>Menu2(プロモーション)</p>
        <p>Menu3(プロモーション)</p>
      </div>
      <div class="tab-content--child displayNone" data-catChild="operation">
        <p>Menu1(運営・更新・保守)</p>
        <p>Menu2(運営・更新・保守)</p>
        <p>Menu3(運営・更新・保守)</p>
      </div>
    </div>
  </div>
  <style>
    .displayNone {
      display: none;
    }

    .tab-head {
      align-content: center;
      align-items: center;
      cursor: pointer;
      display: flex;
      list-style-type: none;
      padding-left: 0;
    }

    .tab-head .tab-head--category-name {
      border: 1px solid #ccc;
      padding: 5px;
    }

    .tab-head .tab-head--category-name:not(:last-child) {
      margin-right: 5px;
    }

    .tab-head .tab-current {
      background-color: #eee;
    }

    .tab-head .tab-current,
    .tab-content .tab-current {
      animation-name: tab-current;
      animation-fill-mode: forwards;
      animation-duration: .5s;
    }

    @keyframes tab-current {
      0% {
        opacity: 0;
      }

      100% {
        opacity: 1;
      }
    }
  </style>
</body>

</html>
; (function () {
  document.addEventListener('DOMContentLoaded', () => {
    class TabContent {
      private categoryNames: HTMLCollection = document.getElementsByClassName('tab-head--category-name') as HTMLCollection;
      private childNames: HTMLCollection = document.getElementsByClassName('tab-content--child') as HTMLCollection;

      public getElm(): void {
        let catName: string = '';

        const getDataset = (elm: HTMLElement, dataset: string): any => {
          return elm.getAttribute(dataset);
        }

        const resetCurrent = (elm: HTMLCollection): void => {
          for (let i = 0, l = elm.length; i < l; i++) {
            elm[i].classList.remove('tab-current');
          }
        }

        const toggleContent = (elm: string): void => {
          resetCurrent(this.childNames);

          for (let i = 0, l = this.childNames.length; i < l; i++) {
            if (getDataset(<any>this.childNames[i], 'data-catchild') === elm) {
              if (this.childNames[i].classList.contains('displayNone')) {
                this.childNames[i].classList.toggle('displayNone');
                this.childNames[i].classList.add('tab-current');
              }
            } else {
              this.childNames[i].classList.add('displayNone');
            }
          }
        }

        for (let i = 0, l = this.categoryNames.length; i < l; i++) {
          this.categoryNames[i].addEventListener('click', () => {
            resetCurrent(this.categoryNames);
            catName = getDataset(<any>this.categoryNames[i], 'data-catparent');
            this.categoryNames[i].classList.add('tab-current');
            toggleContent(catName);
          }, false);
        }
      }
    }

    const t = new TabContent();
    t.getElm();
  }, false);
})();
"use strict";
;
(function () {
  document.addEventListener('DOMContentLoaded', function () {
    var TabContent = /** @class */ (function () {
      function TabContent() {
        this.categoryNames = document.getElementsByClassName('tab-head--category-name');
        this.childNames = document.getElementsByClassName('tab-content--child');
      }
      TabContent.prototype.getElm = function () {
        var _this = this;
        var catName = '';
        var getDataset = function (elm, dataset) {
          return elm.getAttribute(dataset);
        };
        var resetCurrent = function (elm) {
          for (var i = 0, l = elm.length; i < l; i++) {
            elm[i].classList.remove('tab-current');
          }
        };
        var toggleContent = function (elm) {
          resetCurrent(_this.childNames);
          for (var i = 0, l = _this.childNames.length; i < l; i++) {
            if (getDataset(_this.childNames[i], 'data-catchild') === elm) {
              if (_this.childNames[i].classList.contains('displayNone')) {
                _this.childNames[i].classList.toggle('displayNone');
                _this.childNames[i].classList.add('tab-current');
              }
            }
            else {
              _this.childNames[i].classList.add('displayNone');
            }
          }
        };
        var _loop_1 = function (i, l) {
          this_1.categoryNames[i].addEventListener('click', function () {
            resetCurrent(_this.categoryNames);
            catName = getDataset(_this.categoryNames[i], 'data-catparent');
            _this.categoryNames[i].classList.add('tab-current');
            toggleContent(catName);
          }, false);
        };
        var this_1 = this;
        for (var i = 0, l = this.categoryNames.length; i < l; i++) {
          _loop_1(i, l);
        }
      };
      return TabContent;
    }());
    var t = new TabContent();
    t.getElm();
  }, false);
})();

{
  "compilerOptions": {
    /* Basic Options */
    // "incremental": true,                   /* Enable incremental compilation */
    "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    // "lib": [],                             /* Specify library files to be included in the compilation. */
    // "allowJs": true,                       /* Allow javascript files to be compiled. */
    // "checkJs": true,                       /* Report errors in .js files. */
    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
    // "outFile": "./",                       /* Concatenate and emit output to single file. */
    // "outDir": "./",                        /* Redirect output structure to the directory. */
    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    // "composite": true,                     /* Enable project compilation */
    // "tsBuildInfoFile": "./",               /* Specify file to store incremental compilation information */
    // "removeComments": true,                /* Do not emit comments to output. */
    // "noEmit": true,                        /* Do not emit outputs. */
    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */

    /* Strict Type-Checking Options */
    "strict": true,                           /* Enable all strict type-checking options. */
    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
    // "strictNullChecks": true,              /* Enable strict null checks. */
    // "strictFunctionTypes": true,           /* Enable strict checking of function types. */
    // "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
    // "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

    /* Additional Checks */
    // "noUnusedLocals": true,                /* Report errors on unused locals. */
    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */

    /* Module Resolution Options */
    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
    // "typeRoots": [],                       /* List of folders to include type definitions from. */
    // "types": [],                           /* Type declaration files to be included in compilation. */
    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
    // "allowUmdGlobalAccess": true,          /* Allow accessing UMD globals from modules. */

    /* Source Map Options */
    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */

    /* Experimental Options */
    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */

    /* Advanced Options */
    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
  }
}