eduardohelfer
diff --git a/‎dist/js/app.js
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diff --git a/‎dist/ts/app.js
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diff --git a/‎gulpfile.babel.js
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diff --git a/‎html/chapter03/index.html
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diff --git a/‎html/chapter03/index.js
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diff --git a/‎lib/js/app.js
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diff --git a/‎lib/js/data-structures/stack.js
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diff --git a/‎lib/ts/app.ts
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diff --git a/‎lib/ts/data-structures/stack.ts
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diff --git a/‎lib/ts/index.ts
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+import gulp from 'gulp';
+import del from 'del';
+import babelify from 'babelify';
+import browserify from 'browserify';
+import source from 'vinyl-source-stream';
+import glob from 'glob';
+import es from 'event-stream';
+
+const paths = {
+  scriptsJs: 'lib/js/**/*.js',
+  dist: 'dist/',
+  distJs: 'dist/js'
+};
+
+gulp.task('clean', fn => del(paths.dist, fn));
+
+gulp.task('scripts', ['clean'], done => {
+  glob(paths.scriptsJs, function(err, files) {
+    if (err) done(err);
+
+    var tasks = files.map(function(entry) {
+      return browserify({ entries: [entry] })
+        .transform(babelify)
+        .bundle()
+        .pipe(source(entry))
+        .pipe(gulp.dest(paths.dist));
+    });
+    es.merge(tasks).on('end', done);
+  });
+});
+
+gulp.task('default', ['scripts']);
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+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+<script src="index.js" type="module"></script>
+</body>
+</html>
@@ -0,0 +1,5 @@
+import Stack from './../../lib/js/data-structures/stack.js';
+
+const stack = new Stack();
+
+console.log(stack);
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+const Stack = (() => {
+  let items;
+  class DS {
+    constructor() {
+      items = [];
+    }
+    push(element) {
+      items.push(element);
+    }
+
+    pop() {
+      return items.pop();
+    }
+
+    peek() {
+      return items[items.length - 1];
+    }
+
+    isEmpty() {
+      return items.length === 0;
+    }
+
+    size() {
+      return items.length;
+    }
+
+    clear() {
+      items = [];
+    }
+
+    toArray() {
+      return items;
+    }
+
+    toString() {
+      return items.toString();
+    }
+  }
+  return DS;
+})();
+
+export default Stack;
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+export default class Stack {
+  private items: any[];
+
+  constructor() {
+    this.items = [];
+  }
+
+  push(element: any) {
+    this.items.push(element);
+  }
+
+  pop() {
+    return this.items.pop();
+  }
+
+  peek() {
+    return this.items[this.items.length - 1];
+  }
+
+  isEmpty() {
+    return this.items.length === 0;
+  }
+
+  size() {
+    return this.items.length;
+  }
+
+  clear() {
+    this.items = [];
+  }
+
+  toArray() {
+    return this.items;
+  }
+
+  toString() {
+    return this.items.toString();
+  }
+}
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+import Stack from './data-structures/stack';
+
+export { Stack };
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+import Stack from './data-structures/stack';`
	`2`	`+`
	`3`	`+export { Stack };`