In order to duplicate an array in JavaScript: which of the following is faster to use?  Slice method  var dup_array = original_array.slice();   For loop  for(var i = 0, len = original_array.length; i < len; ++i)    dup_array[i] = original_array[...
I found a lot of related questions with answers talking about for...in loops and using hasOwnProperty but nothing I do works properly. All I want to do is check whether or not a key exists in an array and if not, add it.  I start with an empty array...
Update  TL;DR: This is potentially a bug in Safari and/or Webkit.  Longer TL;DR: In Safari, after the Fetch API is used to make a GET request, Safari will automatically (and unintentionally) re-run the the request when the page is reloaded even if th...
I have 2 arrays with objects in them such as:  [{"Start": 1, "End": 2}, {"Start": 4, "End": 9}, {"Start": 12, "End": 16}, ... ]   I want to merge the 2 arrays while removing duplicates. Currently, I am...
In class today we were asked to write an algorithm.    Given an array, remove duplicate values:   It should be stable, and shouldn't have to use an inner loop. Should be done in place, as best as possible No use of built in functions (I was only...
My code automatically search the string for /d+d/d+ elements (roll dices) and adds random number suffixes and stores them as elements in an array.    I want to create a new string with the new modified elements of my array.  (I don't want to spli...
I created a javascript function to copy data from an input on another jQuery tab to a Summary tab. I am having an issue with duplication with a dropdown.    I need for it to replace the exisiting information when choosing another selection if a chang...
Possible Duplicate:   Easiest way to find duplicate values in a javascript array       How do I check if an array has duplicate values?  If some elements in the array are the same, then return true. Otherwise, return false.  ['hello','...
I am looking out for a software that identifies duplicate/redundant Javascript code. I found one such tool named CloneDR, but don't know how good it is .   I was looking out for similar open source tools . Please guide ....

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