How to Remove a Specific Item from an Array

How can I remove a specific item from an array?

Find the index of the array element you want to remove using indexOf, and then remove that index with splice.

The splice() method changes the contents of an array by removing
existing elements and/or adding new elements.

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) { // only splice array when item is found
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array);

How to remove item from array by value?

This can be a global function or a method of a custom object, if you aren't allowed to add to native prototypes. It removes all of the items from the array that match any of the arguments.

Array.prototype.remove = function() {
    var what, a = arguments, L = a.length, ax;
    while (L && this.length) {
        what = a[--L];
        while ((ax = this.indexOf(what)) !== -1) {
            this.splice(ax, 1);
        }
    }
    return this;
};

var ary = ['three', 'seven', 'eleven'];

ary.remove('seven');

/*  returned value: (Array)
three,eleven
*/

To make it a global-

function removeA(arr) {
    var what, a = arguments, L = a.length, ax;
    while (L > 1 && arr.length) {
        what = a[--L];
        while ((ax= arr.indexOf(what)) !== -1) {
            arr.splice(ax, 1);
        }
    }
    return arr;
}
var ary = ['three', 'seven', 'eleven'];
removeA(ary, 'seven');


/*  returned value: (Array)
three,eleven
*/

And to take care of IE8 and below-

if(!Array.prototype.indexOf) {
    Array.prototype.indexOf = function(what, i) {
        i = i || 0;
        var L = this.length;
        while (i < L) {
            if(this[i] === what) return i;
            ++i;
        }
        return -1;
    };
}

How can I remove a specific item from an array?

Find the index of the array element you want to remove using indexOf, and then remove that index with splice.

The splice() method changes the contents of an array by removing
existing elements and/or adding new elements.

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) { // only splice array when item is found
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array);

How can I remove an array element by index,using javaScript?

You can use splice to do the same. Syntax = array.splice(start_index, no_of_elements) Following is the command:

const fruits = ["mango","apple","pine","berry"]; // returns mutated array
const removed = fruits.splice(2, 1); // returns array of removed items
console.log('fruits', fruits);
console.log('removed', removed);

How can I remove a specific item from an array?

Find the index of the array element you want to remove using indexOf, and then remove that index with splice.

The splice() method changes the contents of an array by removing
existing elements and/or adding new elements.

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) { // only splice array when item is found
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array);

How to delete an item from state array?

To remove an element from an array, just do:

array.splice(index, 1);

In your case:

removePeople(e) {
  var array = [...this.state.people]; // make a separate copy of the array
  var index = array.indexOf(e.target.value)
  if (index !== -1) {
    array.splice(index, 1);
    this.setState({people: array});
  }
},

How can I remove a specific item from an array?

Find the index of the array element you want to remove using indexOf, and then remove that index with splice.

The splice() method changes the contents of an array by removing
existing elements and/or adding new elements.

const array = [2, 5, 9];

console.log(array);

const index = array.indexOf(5);
if (index > -1) { // only splice array when item is found
  array.splice(index, 1); // 2nd parameter means remove one item only
}

// array = [2, 9]
console.log(array);

Remove a specific item from an array of objects Reactjs

You need to pass the ticketID to your IconButton's onClick handler:

<IconButton 
  onClick={() => removeTicket(row.ticketID)} 
  aria-label="delete" 
  color="primary"
>
  <DeleteIcon />
</IconButton>

And update your handler where you can create a new array using the .filter() method:

const removeTicket = (ticketID)=> {
  setRows(rows.filter(item => ticketID !== item.ticketID)
}

This rows.filter() returns every element where the ticketID is not the same as the one you passed down.

Removing a specific element from an array by name in AS3

Documentation of splice()

Both parameters need to be integers, the first one is the position of the element you want to delete, and the second one is the amount of elements you want to delete. Try myarray.splice(myarray.indexOf(myclip),1);

Don't know why it would only remove the first element in your snippet, maybe internally it casts myclip to 0? Doesn't matter, use indexOf. If that doesn't work, for loop through the array to get the position first.

Remove first Item of the array (like popping from stack)

The easiest way is using shift(). If you have an array, the shift function shifts everything to the left.

var arr = [1, 2, 3, 4]; 
var theRemovedElement = arr.shift(); // theRemovedElement == 1
console.log(arr); // [2, 3, 4]

How to Remove a Specific Item from an Array

How can I remove a specific item from an array?

How to remove item from array by value?

How can I remove a specific item from an array?

How can I remove an array element by index,using javaScript?

How can I remove a specific item from an array?

How to delete an item from state array?

How can I remove a specific item from an array?

Remove a specific item from an array of objects Reactjs

Removing a specific element from an array by name in AS3

Remove first Item of the array (like popping from stack)

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