convert FastBootHeaders to es6 class

Author: bekzod

src/fastboot-headers.js

@@ -2,92 +2,95 @@
 
 // Partially implements Headers from the Fetch API
 // https://developer.mozilla.org/en-US/docs/Web/API/Headers
-function FastBootHeaders(headers) {
-  headers = headers || {};
-  this.headers = {};
-
-  for (var header in headers) {
-    let value = headers[header];
-
-    // Express gives us either a string
-    // or an array of strings if there are multiple values.
-    // We want to support the Header spec
-    // so we will coerce to an array always.
-    if (typeof value === 'string') {
-      value = [value];
+class FastBootHeaders {
+  constructor(headers) {
+    headers = headers || {};
+    this.headers = {};
+
+    for (var header in headers) {
+      let value = headers[header];
+
+      // Express gives us either a string
+      // or an array of strings if there are multiple values.
+      // We want to support the Header spec
+      // so we will coerce to an array always.
+      if (typeof value === 'string') {
+        value = [value];
+      }
+
+      this.headers[header] = value;
     }
-
-    this.headers[header] = value;
   }
-}
 
-FastBootHeaders.prototype.append = function(header, value) {
-  header = header.toLowerCase();
-  if (!this.has(header)) {
-    this.headers[header] = [];
-  }
+  append(header, value) {
+    let _header = header.toLowerCase();
 
-  this.headers[header].push(value);
-};
+    if (!this.has(_header)) {
+      this.headers[_header] = [];
+    }
 
-FastBootHeaders.prototype.delete = function(header) {
-  delete this.headers[header.toLowerCase()];
-};
+    this.headers[_header].push(value);
+  }
 
-FastBootHeaders.prototype.entries = function() {
-  var entries = [];
+  delete(header) {
+    delete this.headers[header.toLowerCase()];
+  }
+
+  entries() {
+    var entries = [];
 
-  for(var key in this.headers) {
-    var values = this.headers[key];
-    for(var index = 0; index < values.length; ++index ) {
-      entries.push([key, values[index]]);
+    for(var key in this.headers) {
+      var values = this.headers[key];
+      for(var index = 0; index < values.length; ++index ) {
+        entries.push([key, values[index]]);
+      }
     }
-  }
 
-  return entries[Symbol.iterator]();
-};
+    return entries[Symbol.iterator]();
+  }
 
-FastBootHeaders.prototype.get = function(header) {
-  return this.getAll(header)[0] || null;
-};
+  get(header) {
+    return this.getAll(header)[0] || null;
+  }
 
-FastBootHeaders.prototype.getAll = function(header) {
-  return this.headers[header.toLowerCase()] || [];
-};
+  getAll(header) {
+    return this.headers[header.toLowerCase()] || [];
+  }
 
-FastBootHeaders.prototype.has = function(header) {
-  return this.headers[header.toLowerCase()] !== undefined;
-};
+  has(header) {
+    return this.headers[header.toLowerCase()] !== undefined;
+  }
 
-FastBootHeaders.prototype.keys = function() {
-  var entries = [];
+  keys() {
+    var entries = [];
 
-  for(var key in this.headers) {
-    var values = this.headers[key];
-    for(var index = 0; index < values.length; ++index ) {
-      entries.push(key);
+    for(var key in this.headers) {
+      var values = this.headers[key];
+      for(var index = 0; index < values.length; ++index ) {
+        entries.push(key);
+      }
     }
-  }
 
-  return entries[Symbol.iterator]();
-};
+    return entries[Symbol.iterator]();
+  }
 
-FastBootHeaders.prototype.set = function(header, value) {
-  header = header.toLowerCase();
-  this.headers[header] = [value];
-};
+  set(header, value) {
+    header = header.toLowerCase();
+    this.headers[header] = [value];
+  }
 
-FastBootHeaders.prototype.values = function() {
-  var entries = [];
+  values() {
+    var entries = [];
 
-  for(var key in this.headers) {
-    var values = this.headers[key];
-    for(var index = 0; index < values.length; ++index ) {
-      entries.push(values[index]);
+    for(var key in this.headers) {
+      var values = this.headers[key];
+      for(var index = 0; index < values.length; ++index ) {
+        entries.push(values[index]);
+      }
     }
-  }
 
-  return entries[Symbol.iterator]();
-};
+    return entries[Symbol.iterator]();
+  }
+}
 
 module.exports = FastBootHeaders;