Remove mask when input is cleared

lib/vanilla-masker.js

@@ -69,6 +69,14 @@
 
           if (isAllowedKeyCode(e.keyCode)) {
             setTimeout(function() {
+              var rawValue = source.value.replace(/\D/g, '');
+
+              if (!rawValue) {
+                source.value = '';
+                source.lastOutput = '';
+                return;
+              }
+
               that.opts.lastOutput = source.lastOutput;
               source.value = VMasker[maskFunction](source.value, that.opts);
               source.lastOutput = source.value;
@@ -77,8 +85,7 @@
               }
             }, 0);
           }
-        }
-    ;
+        };
     for (var i = 0, len = this.elements.length; i < len; i++) {
       this.elements[i].lastOutput = "";
       this.elements[i].onkeyup = onType;
@@ -121,14 +128,17 @@
   };
 
   VMasker.toMoney = function(value, opts) {
+    if (value === undefined || value === null || value === '') {
+      return '';
+    }
+
     opts = mergeMoneyOptions(opts);
     if (opts.zeroCents) {
       opts.lastOutput = opts.lastOutput || "";
       var zeroMatcher = ("("+ opts.separator +"[0]{0,"+ opts.precision +"})"),
           zeroRegExp = new RegExp(zeroMatcher, "g"),
           digitsLength = value.toString().replace(/[\D]/g, "").length || 0,
-          lastDigitLength = opts.lastOutput.toString().replace(/[\D]/g, "").length || 0
-          ;
+          lastDigitLength = opts.lastOutput.toString().replace(/[\D]/g, "").length || 0;
       value = value.toString().replace(zeroRegExp, "");
       if (digitsLength < lastDigitLength) {
         value = value.slice(0, value.length - 1);
@@ -140,7 +150,7 @@
     var separatorIndex = number.indexOf(opts.separator),
         missingZeros = (opts.precision - (number.length - separatorIndex - 1));
 
-    if (separatorIndex !== -1 && (missingZeros > 0) ) {
+    if (separatorIndex !== -1 && (missingZeros > 0)) {
       number = number + ('0' * missingZeros);
     }
 
@@ -150,8 +160,7 @@
         clearSeparator = new RegExp("(\\"+ opts.separator +")$"),
         money = number.substr(0, number.length - opts.moneyPrecision),
         masked = money.substr(0, money.length % 3),
-        cents = new Array(opts.precision + 1).join("0")
-        ;
+        cents = new Array(opts.precision + 1).join("0");
 
     money = money.substr(money.length % 3, money.length);
     for (var i = 0, len = money.length; i < len; i++) {
@@ -170,25 +179,28 @@
       var beginCents = Math.max(0, number.length - opts.precision),
           centsValue = number.substr(beginCents, opts.precision),
           centsLength = centsValue.length,
-          centsSliced = (opts.precision > centsLength) ? opts.precision : centsLength
-      ;
+          centsSliced = (opts.precision > centsLength) ? opts.precision : centsLength;
       cents = (cents + centsValue).slice(-centsSliced);
     }
     var output = opts.unit + signal + masked + opts.separator + cents;
     return output.replace(clearSeparator, "") + opts.suffixUnit;
   };
 
   VMasker.toPattern = function(value, opts) {
+    var placeholder = (typeof opts === 'object' ? opts.placeholder : undefined);
+
+    if (!placeholder && (!value || !value.toString().replace(/\W/g, ''))) {
+      return '';
+    }
+
     var pattern = (typeof opts === 'object' ? opts.pattern : opts),
         patternChars = pattern.replace(/\W/g, ''),
         output = pattern.split(""),
         values = value.toString().replace(/\W/g, ""),
         charsValues = values.replace(/\W/g, ''),
         index = 0,
         i,
-        outputLength = output.length,
-        placeholder = (typeof opts === 'object' ? opts.placeholder : undefined)
-    ;
+        outputLength = output.length;
 
     for (i = 0; i < outputLength; i++) {
       // Reached the end of input
@@ -220,17 +232,22 @@
         } else if (output[i] === values[index]) {
           index++;
         }
-
       }
     }
     return output.join("").substr(0, i);
   };
 
   VMasker.toNumber = function(value) {
+    if (!value || !value.toString().replace(/\D/g, '')) {
+      return '';
+    }
     return value.toString().replace(/(?!^-)[^0-9]/g, "");
   };
 
   VMasker.toAlphaNumeric = function(value) {
+    if (!value || !value.toString().replace(/[^a-z0-9 ]+/i, '')) {
+      return '';
+    }
     return value.toString().replace(/[^a-z0-9 ]+/i, "");
   };