Lodash (ii) object + loop traversal + sort

• Objective:

Lodash (i) just studied the various methods in the array, followed by the frequently used loop traversal problem

• Process:

1._.forEach(collection, [iteratee=_.identity], [thisArg])  遍历

    _.foreach ([22,33,11,55],function (value) {// If a parameter is returned is its value      console.log (value) ; //  the     });    _.foreach ([22,33,11,55],function (value,index) {// = This is the first parameter that returns the value, The second parameter is subscript index      console.log (value);    });

2._.sortBy(collection, [iteratee=_.identity], [thisArg])   排序匿名函数+字符串

  var  arr = [{name:  ' BB ', AGE:23
   
    }, {name:  ' AA ', Age:22
    }];  
    var  arrsortresult = _.sortby (arr, 
    function  
     return   Item.name;    }); _.foreach (Arrsortresult,  function   (item) {Console.log (item.name);  // aa BB }); 
   

    var strsortresult = _.sortby (' CDA '). Join ('); // the Join () method method is used to put all the elements in an array into a string. The elements are delimited by the specified delimiter.      Console.log (strsortresult);   ACD

3._.sortedIndex(array, value, [iteratee=_.identity], [thisArg]) 

         参数：array(Array): The array to be checked value (*): The parameters to be inserted [iteratee=_.identity] (function| object|string): Traversal method [thisArg] (*): iteratee The bound value

    var collection = [' A ', ' B ', ' C ', ' d ', ' F '];    Console.log (' before: ' + collection.join (')); // Before:a b c D F    var tobeinserted = ' E ';     var sortedindex = _.sortedindex (collection, tobeinserted);    Console.log ("This is Sortedindex:" +sortedindex); // This is sortedindex:4    Collection.splice (sortedindex, 0, tobeinserted);    Console.log (' after: ' + collection.join (') '); // after:a b c d E F

• After statement:

Just a brief look about the Lodash part, but found that using it can quickly solve their own problems encountered before, I hope that the future work can be applied freely.

Lodash (ii) object + loop traversal + sort