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Oct 23, 2015 · A very basic snippet by just using loops and push. It's dynamic function, So you can specify duplicator to duplicate value number of times. Function name duplicate. Syntax: duplicate (array, duplicator)
Jun 13, 2018 · 4. Try below snippet. It loops array through it's own elements (inner loop). 1st if condition checks for same element (we do not want that in output), 2nd if does the required condition match to identify any duplicate object. var array = [. {. name: "Steven Smith", Country: "England", Age: 35. },
Aug 24, 2013 · Iterate over the whole array and keep track of the index of each element. For this we need a string -> positions map. An object is the usual data type to use for this. The keys are the elements of the array and the values are arrays of indexes/positions of each element in the array.
Find duplicate numbers in a JavaScript array The following approach is similar to the above in that it compares the first and last indexes to determine if the number is a duplicate. It differs from the first example in that the following example uses .forEach rather than .reduce .
Apr 18, 2021 · I am trying to find the dupicates in an array and removing them at the duplicated index using the splice method, the code is removing the duplicates but it still leaves one duplicated item. var
Nov 15, 2019 · Here is my Array below which i want to find if there are duplicates within it. const repeatedNumEvent = {. PlayerNumber: this.state.PlayerNumber, eventType: this.state.eventType. }; basically if an new array object has identical values then display the duplicate.
Apr 24, 2024 · This post will discuss how to find all duplicates in an array in JavaScript. 1. Using Array.prototype.indexOf() function. The idea is to compare the index of all items in an array with an index of their first occurrence. If both indices don’t match for any item in the array, you can say that the current item is duplicated. To return a new ...
