fix template string without arguments for compile

compile.js

@@ -24,7 +24,7 @@ var argTemplate = "(result = args.hasOwnProperty(\"{0}\") ? " +
 module.exports = compile
 
 function compile(string, inline) {
-    var replacements = string.match(nargs)
+    var replacements = string.match(nargs) || []
     var interleave = string.split(nargs)
     var replace = []
 

test/compile-strong.js

@@ -277,3 +277,10 @@ test("Allow multiple references", function (assert) {
     assert.equal(result3, "onetwothree\nonetwothree\nonetwothree")
     assert.end()
 })
+
+test("Template string without arguments", function (assert) {
+    var template = compile("Hello, how are you?", true)
+    var result = template()
+    assert.equal(result, "Hello, how are you?")
+    assert.end()
+})

test/compile-weak.js

@@ -118,7 +118,6 @@ test("Listed arguments are replaced", function (assert) {
     assert.end()
 })
 
-
 test("Supports quotes", function (assert) {
     var template = compile("Hello {0}, how are you?")
     var result = template("\"Mark")
@@ -278,3 +277,10 @@ test("Allow multiple references", function (assert) {
     assert.equal(result3, "onetwothree\nonetwothree\nonetwothree")
     assert.end()
 })
+
+test("Template string without arguments", function (assert) {
+    var template = compile("Hello, how are you?")
+    var result = template()
+    assert.equal(result, "Hello, how are you?")
+    assert.end()
+})

test/string-template.js

@@ -211,3 +211,9 @@ test("Allow multiple references", function (assert) {
     assert.equal(result3, "onetwothree\nonetwothree\nonetwothree")
     assert.end()
 })
+
+test("Template string without arguments", function (assert) {
+    var result = format("Hello, how are you?")
+    assert.equal(result, "Hello, how are you?")
+    assert.end()
+})