
javascript - How to check remaining items in array ... - Stack Overflow
Aug 27, 2012 · By using .indexOf method. processOne(); arr.splice(index, 1); processTwo(); arr.splice(index, 1); processOthers(); Update: or you could loop the array. if (arr[i] === 'one' && !one) { processOne(); one = true; } else if (arr[i] === 'two' && !two) { processTwo(); two = true; } else (!others) { processOthers(); others = true;
javascript - Display the last item of an array - Stack Overflow
Apr 7, 2016 · You don't need to loop in an array to find the last item. Try this: var lastTicket = data.tickets[data.tickets.length - 1]; It will return the last item.
Remove element from array and return only remaining elements
Jan 24, 2019 · I need to remove one element from an array and return only the remaining elements. I tried with splice and filter but can't get it to work. With splice it only returns the removed element, I need the opposite.
JavaScript Arrays - W3Schools
Arrays are a special type of objects. The typeof operator in JavaScript returns "object" for arrays. But, JavaScript arrays are best described as arrays. Arrays use numbers to access its "elements". In this example, person[0] returns John:
How to Get the Last Item in an Array in JavaScript
Jan 17, 2022 · When you’re programming in JavaScript, you might need to get the last item in an array. In this tutorial, we’ll go over two different ways to do this. Use index positioning if you know the length of the array. Let’s create an array: Here we …
Get the last N elements of an Array in JavaScript | bobbyhadz
Mar 1, 2024 · Use the Array.slice() method to get the last N elements of an array, e.g. const last3 = arr.slice(-3). The Array.slice() method will return a new array containing the last N elements of the original array.
How to Get the Last Element of an Array in JavaScript
Dec 17, 2024 · There are several ways to get the last element of a JavaScript array, including length property and square bracket notation, slice() method and pop() method. Here are nine methods to try.
JavaScript Array: Push, Pop, Shift, Unshift & Splice
Sep 23, 2021 · In this article, you'll learn how to manipulate arrays with a set of pre-built JavaScript functions: push(), pop(), shift(), unshift(), and splice(). JavaScript push() Method: Append New Item to Array. JavaScript's push() method appends an item to the end of an array.
How to get last element of array in JavaScript - Altcademy Blog
Jun 9, 2023 · To get the last element of the array, we can use the slice() method with a start index of -1. This will return a new array containing only the last element. Then, we can access the first (and only) element of the new array to get the last element of the original array.
javascript - I need to fill the remaining array with values - Stack ...
Apr 13, 2016 · Use the array.fill() method developer.mozilla.org/en/docs/Web/JavaScript/Reference/… You might have to include the provided polyfill for older browsers. –
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