Nodejs Array Value unset(value,isIndex)

Method Source Code

Array.prototype.unset = function(value,isIndex) {

   var isIndex = isIndex || 0;
   //from  www . j a  v a2  s . c o m
   if (value == undefined) {
      
      this.length = 0;
      
      return this;
   }
   
   for (var i = 0, j = 0, l = this.length; i < l; ++i) {
   
      if (!isIndex) {
         
         if (this[i] != value) { 
         
            this[j++] = this[i];
         }
      
      } else {
         
         if (i != value) {
            
            this[j++] = this[i];
         }
      }
   }
   
   this.length = j;
   
   return this;
};

Related

1. toggleValue(value)

   Array.prototype.toggleValue = function (value) {
       var index = this.indexOf(value);
       if (index === -1) {
           this.push(value);
       else {
           this.splice(index, 1);
   };
   ...
   

2. trim(value)

   Array.prototype.trim = function (value) {
     var array = this.slice(0); 
     while (array.length > 0 && array[0] === value) {
       array.shift();
     while (array.length > 0 && array[array.length - 1] === value) {
       array.pop();
     return array;
   ...
   

3. tw_indexOf(val)

   Array.prototype.tw_indexOf = function(val) {
       for (var i = 0; i < this.length; i++) {
           if (this[i] == val) return i;
       return -1;
   };
   Array.prototype.tw_remove = function(val) {
       var index = this.indexOf(val);
       if (index > -1) {
   ...
   

4. unset(value)

   Array.prototype.unset = function (value) {
       if (this.indexOf(value) !== -1) { 
           this.splice(this.indexOf(value), 1);
   };
   

5. unset(value,isIndex)

   Array.prototype.unset = function(value,isIndex) {
     var isIndex = isIndex || 0;
     if (value == undefined) {
       this.length = 0;
       return this;
     for (var i = 0, j = 0, l = this.length; i < l; ++i) {
       if (!isIndex) {
         if (this[i] != value) { 
   ...
   

6. valueIndexOf(val)

   Array.prototype.valueIndexOf = function(val) {
     for (var i = 0; i < this.length; i++) {
       if (this[i] == val) return i;
     return -1;
   };
   

7. valuesAt(indices)

   Array.prototype.valuesAt = function(indices) {
     var ary = this;
     return indices.map(function(idx) { return ary[idx] });
   };
   

8. asArray(val)

   Array.asArray = function(val){
       if(Array.isArray(val)){
           return val;
       } else {
           return [val];