How to slice children array?

In this example I started by slicing an array. That worked. I then tried to slice an array made with .children and it did not work. How can I get half the children in a example like this one?

var arr = ["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight"];
console.log(arr.slice(4))

var childs = document.getElementById("container").children;
console.log(childs)
console.log(childs.slice(4));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="container">
  <p>unaffected</p>
  <p>unaffected</p>
  <p>unaffected</p>
  <p>unaffected</p>
  <p>affected</p>
  <p>affected</p>
  <p>affected</p>
  <p>affected</p>
 </div>

var arr = ["One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight"];
console.log(arr.slice(4))

var childs = Array.from(document.getElementById("container").children);
console.log(childs);
console.log(childs.slice(4));
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="container">
  <p>unaffected</p>
  <p>unaffected</p>
  <p>unaffected</p>
  <p>unaffected</p>
  <p>affected</p>
  <p>affected</p>
  <p>affected</p>
  <p>affected</p>
 </div>

.slice(), Negative Indices. The jQuery .slice() method is patterned after the JavaScript .​slice() method for arrays. One of the features that it mimics is  The slice() method returns a shallow copy of a portion of an array into a new array object selected from begin to end (end not included) where begin and end represent the index of items in that array. The original array will not be modified.

You cannot remove directly as they are Html element

Use this instead or do what Md Johirul Islam suggested document.getElementById("container").removeChild(childs[4])

JavaScript: how to slice DOM elements, For that reason, if we want to slice a set of DOM elements we have to call the corresponding array method directly from its prototype object. Let's  MongoDB Match and Slice multiple child arrays. "actuators" and "status" arrays the objects that match the nid that i provide and then also limit the result to 10

Yes, DOM nodes aren't arrays, so if you want to work with them as such you will need to define your own functions to do so. For example, you can define a slice function:

function slice(list, start, end) {
    var result = []
    for (var i = start; i < end; i++) {
        result.push(list[i])
    }
    return result
}

for example,

slice(document.getElementById("container").children, 0, 5)

In my opinion, such "helper" methods should rarely be created in isolation unless you're absolutely sure you'll be slicing DOM node lists enough that it will save you technical load. For me, these kind of "helper" functions bring with them a cognitive load that really only make sense within a larger framework like Ramda.js, etc. And I mean that insofar as within a framework you are using or developing.

You can try checking out one of those functional frameworks to see if it makes sense for you. For instance, Ramda.js already has a slice method that will do that will slice DOM nodes or any other array-like objects:

R.slice(0, 5, document.getElementById("container").children)

Render Children in React Using Fragment or Array Components , This is one less cut. Some CSS mechanisms like flexbox and grid have a special parent-child relationship, and adding divs in the middle makes  array: Required. Specifies an array: start: Required. Numeric value. Specifies where the function will start the slice. 0 = the first element. If this value is set to a negative number, the function will start slicing that far from the last element. -2 means start at the second last element of the array. length: Optional. Numeric value.

slice is Array method, but it can be used on Array-like objects:

console.log( [].slice.call(container.children, 2) )

console.log( [].slice.bind(container.children)(2) )

console.log( [].slice.apply(container.children, [2]) )
<div id="container">
  <p> 1 </p>
  <p> 2 </p>
  <p> 3 </p>
  <p> 4 </p>
 </div>

JavaScript Array slice() Method, The slice() method returns the selected elements in an array, as a new array object. The slice() method selects the elements starting at the given start argument,  Slicing can not only be used for lists, tuples or arrays, but custom data structures as well, with the slice object, which will be used later on in this article. Slicing Python Lists/Arrays and Tuples Syntax. Let's start with a normal, everyday list.

children, Tip: You can use the length property of the HTMLCollection object to determine the number of child elements, then you can loop through all children and extract  array_slice can be used to remove elements from an array but it's pretty simple to use a custom function. One day array_remove() might become part of PHP and will likely be a reserved function name, hence the unobvious choice for this function's names.

React Top-Level API – React, Children.map() because it is an array rather than a React element. especially if you want to reorder or slice this.props.children before passing it down. Note:. To specify equality condition on an array, use the query document {<field>: <value>} where <value> is the exact array to match, including the order of the elements. To specify equality condition on an array, use the query document eq( <field>, <value>) where <value> is the exact array to match, including the order of the elements.

Ruby Programming, Here, the first statement defines an array named children and Ruby also lets a range of items, referred to as a slice, by using the Array class's slice method. TypeScript introduces the concept of arrays to tackle the same. An array is a homogenous collection of values. To simplify, an array is a collection of values of the same data type. It is a user defined type. Features of an Array. Here is a list of the features of an array − An array declaration allocates sequential memory blocks.

Comments
  • Dom nodes are NOT arrays, there a collection.. But you can use Array.from first. var childs = Array.from(document.getElementById("container").children);
  • The result from children is HTMLCollection not an Array you might want to change it to HTMLCollection var childs = Array.from( document.getElementById("container").children )` and the rest should be the same. Also be aware that Array.from is not available on IE so you might need a polyfill for that one
  • That actually removes the element from the DOM, not just the 'array'
  • Yes, I understand that. That's why I said do as what Md Johirul Islam suggested or remove it from the DOM