Nodejs Array Find findBy(field, value)

Method Source Code

Array.prototype.findBy = function (field, value) {
    return this.filter(function (i) {
        return i[field] === value;
    })[0];//from  w  ww  .  j  a  v  a  2  s .  co  m
};

Related

1. findAll( func )

   Array.prototype.findAll = function( func ) {
     if( $.isFunction(func) ) {
       var _arr = [];
       for( var i=0; i<this.length; i++ ) {
         var item = this[i];
         if( func(item) == true ) {
           _arr.push(item);
       return _arr;
     else {
       console.log("Please pass a function when using findAll","Error");
   };
   

2. findAll()

   Array.prototype.findAll = function()
     var results = [];
     this.each(function(value, index)
       if(iterator.call(context, value, index, this))
       results.push(value);
     }, this);
     return results;
   ...
   

3. arrayContains(find)

   Array.prototype.arrayContains = function(find){
     for (item in this) {
       if(this.hasOwnProperty(item)) {
         var pattern = new RegExp(String(this[item]).trim(), 'gi');
         if (find.search(pattern) != -1) return true;
     return false;
   

4. findAndRemove(value)

   Array.prototype.findAndRemove = function (value) {
     for (var i = 0; i < this.length; i++) {
       if (this[i] == value) {
         this.splice(i, 1);
   };
   

5. findAndRemoveObject(value, key)

   Array.prototype.findAndRemoveObject = function (value, key) {
       for (var i = 0; i < this.length; i++) {
           if (this[i] && this[i][key] == value) {
               this.splice(i, 1);
   };
   

6. findByField(field,value)

   Array.prototype.findByField = function(field,value)
     for(var t=0; t<this.length; t++) {
       if(this[t][field] == value)
         return t;
     return null;
   };
   

7. findByProp(propName, propValue)

   Array.prototype.findByProp = function(propName, propValue) {
     for(var i = 0 ; i < this.length ; i++) {
       if(this[i][propName] === propValue) {
         return this[i];
   };
   

8. findByProperty(propName, value)

   Array.prototype.findByProperty = function (propName, value) {
       if (this.length > 0) {
           for (var i = this.length - 1; i > -1; i--) {
               var propObj = this[i];
               if (propObj[propName] === value) {
                   return propObj;
       return null;
   };
   

9. findBySku(sku)

   Array.prototype.findBySku = function(sku) {
     var result = null;
     this.forEach(function(elem, index) {
       if (elem.sku === sku) {
         result = elem;
     })
     return result;
   };
   ...