Merge pull request #118 from az7arul/startsWith-endsWith-multiArg

Added multiple argument support for startsWith and endsWith methods

Author: jprichardson

lib/string.js

@@ -169,9 +169,13 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
       return new this.constructor(s);
     },
 
-    endsWith: function(suffix) {
-      var l  = this.s.length - suffix.length;
-      return l >= 0 && this.s.indexOf(suffix, l) === l;
+    endsWith: function() {
+      var suffixes = Array.prototype.slice.call(arguments, 0);
+      for (var i = 0; i < suffixes.length; ++i) {
+        var l  = this.s.length - suffixes[i].length;
+        if (l >= 0 && this.s.indexOf(suffixes[i], l) === l) return true;
+      }
+      return false;
     },
 
     escapeHTML: function() { //from underscore.string
@@ -380,8 +384,12 @@ string.js - Copyright (C) 2012-2014, JP Richardson <[email protected]>
       return new this.constructor(sl);
     },
 
-    startsWith: function(prefix) {
-      return this.s.lastIndexOf(prefix, 0) === 0;
+    startsWith: function() {
+      var prefixes = Array.prototype.slice.call(arguments, 0);
+      for (var i = 0; i < prefixes.length; ++i) {
+        if (this.s.lastIndexOf(prefixes[i], 0) === 0) return true;
+      }
+      return false;
     },
 
     stripPunctuation: function() {

test/string.test.js

@@ -138,13 +138,16 @@
       })
     })
 
-    describe('- endsWith(suffix)', function() {
+    describe('- endsWith(suffixe1[, suffix2, ..])', function() {
       it("should return true if the string ends with the input string", function() {
         T (S("hello jon").endsWith('jon'));
         F (S('ffffaaa').endsWith('jon'));
         T (S("").endsWith(''));
         T (S("hi").endsWith(''));
         T (S("hi").endsWith('hi'));
+        T (S("test.jpeg").endsWith('png', 'jpg', 'jpeg'));
+        T (S("Chunky Bacon").endsWith(''));
+        F (S("Chunky Bacon").endsWith("nk", "aco"));
       })
     })
 
@@ -460,14 +463,16 @@
       })
     })
 
-    describe('- startsWith(prefix)', function() {
+    describe('- startsWith(prefix1 [, prefix2, ...])', function() {
       it("should return true if the string starts with the input string", function() {
         T (S("JP is a software engineer").startsWith("JP"));
         F (S('wants to change the world').startsWith("politicians"));
         T (S("").startsWith(""));
         T (S("Hi").startsWith(""));
         T (S("JP").startsWith("JP"));
-      })
+        T (S("Chunky Bacon").startsWith("JP", "Chunk"));
+        F (S("Lorem Ipsum").startsWith("Ip", "Sum"));
+      });
     })
 
     describe('- stripPunctuation()', function() {