Filter Array of objects and count the filtered elements in Javascript

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I have array of different objects which look like this:

[{
   color:'red',
   'type':'2',
   'status':'true'
 }
 {
   color:'red',
   'type':'2',
   'status':'false'
 }]

I want to filter the one element like status and then count the filtered, for example if status is false then return 1.

I have tried the below code but I am not sure what I am doing here:

for (i = 0; i < check.length; i++) {
  var check2;

  console.log(check[i].isApproved);
  (function(check2) {
    return check2 = check.filter(function(val) { 
        return val == false 
    }).length;
  })(check2)

  console.log('again Rides',check2);
}

Well, you could just do a count, or you could run a filter and get the length of the final array.

var count = 0;
var arr = [{color:'red', type:'2', status:'true'},
           {color:'red', type:'2', status:'false'} ];
// Showing filterin to be robust. You could just do this in 
// a loop, which would be sensible if you didn't need the subarray. 
var filtered = arr.filter ( function ( d ) {
    // Note that I'm testing for a string, not a boolean, because
    // you are using strings as values in your objects. 
    // If it was a boolean, you'd use if ( d.status ) { ... }
    count++;
    return d.status === 'false';
});

// These should be the same, reflecting number of objs with 'false'
console.log ( count );
console.log ( filtered.length );
// This should trace out a sub array of objs with status === 'false'
console.log ( filtered );

Array.prototype.filter(), The filter() method creates a new array with all elements that pass the value of the element; the index of the element; the Array object being traversed uses filter() to create a filtered array that has all elements with values� The filter () method creates a new array with all the elements that pass the test implemented by the callback () function. Internally, the filter () method iterates over each element of the array and pass each element to the callback function. If the callback function returns true, it includes the element in the return array.


If I understood correctly you want to count the number of elements where status is equal to 'false' note: The values you have in status are strings

var check = [
  { color:'red', 'type':'2', 'status':'true' }, 
  { color:'red', 'type':'2', 'status':'false' } 
];

var countfiltered = check.filter(function(element){
    return element.status == 'false';
}).length

console.log(countfiltered);

JavaScript Array filter() Method, Note: filter() does not execute the function for array elements without values. Note : filter() does arr, Optional. The array object the current element belongs to� var newArray = array.filter(function(item) { return condition; }); The item argument is a reference to the current element in the array as filter() checks it against the condition. This is useful for accessing properties, in the case of objects. If the current item passes the condition, it gets sent to the new array. Filtering an array of objects


just to add latest syntax and more readable IMO:

const items = [
  { color:'red', type:'2', status:'true' }, 
  { color:'red', type:'2', status:'false' } 
];

const statusFalseCount = items.filter(e => e.status === 'false').length;

console.log(statusFalseCount); // => 1 

How to count object in array - JavaScript, How to count there is only six data that have status: 0 on javascript? Please share a Set up a counter, and loop through the items in the array. If status is 0, add You can use the filter function of the array prototype to do this: Filter function just only filter the original array based on the condition given without changing the value of the array elements, hence it is also called as Pure Function. Example 2 – Filtering an array of objects in Javascript. Array.filter() can also be used to filter an array of objects using its properties. One such example is shown below.


How to Count Objects in an Array, Knowing how to quickly iterate through an array and count objects is deceptively simple. JavaScript includes a bunch of helpful methods when working with arrays. The filter method does just that – it iterates through each element in Now that you've filtered out the object with status: '1' , just call the� Definition and Usage. The filter() method creates an array filled with all array elements that pass a test (provided as a function). Note: filter() does not execute the function for array elements without values.


Filter Arrays with the Javascript Filter() Method - DEV, Filtering unwanted elements to reduce the size of an array is fun right? JavaScript array filter method makes it even more fun. In my last blog post, I wrote about Example 1: Filtering an array of objects. If you have an array of� JavaScript filter method is used to create a new array from an existing array. The JavaScript filter () method returns a new array which will be filtered from an original array. You will be performing a certain test on an original array and the elements that pass this test will be returned to the new array using this method.


Using the Array.find Method in JavaScript ← Alligator.io, In this short post, we will explore JavaScript's super useful Array.find method to very much like the Array.filter method, except it only returns a single element. We can use find() to easily search arrays of objects, too! name: "oak", count: 2 } ]; const result = trees.find(tree => tree.name === "oak"); // { name: "oak", count, 2 }. The arr.filter() method is used to create a new array from a given array consisting of only those elements from the given array which satisfy a condition set by the argument method. Syntax: array.filter(callback(element, index, arr), thisValue) Parameters: This method accepts five parameter as mentioned above and described below: