FireFox is blocking Twitter content

To view content on tw-rl, follow these steps...

  1. Click on the shield in the address bar.
  2. Toggle the switch at the top of the panel.
Sign In →
Sign In →
start
Read Thread
JavaScript ๐Ÿ’ก 14 Array Methods that will make your life easier. Explanation and examples below. ๐Ÿงต๐Ÿ‘‡
๐Ÿ”ธ map The map() method creates a new array populated with the return value of the callback function for each element in the array.
๐Ÿ”ธ forEach The forEach() method executes a provided function once for each array element. The callback function does not expect a return value, and the forEach() method itself also returns undefined.
๐Ÿ”ธ filter The filter() method creates a new array containing only the elements that "pass the test" implemented by the callback function. We call this type of callback a predicate function.
๐Ÿ”ธ find The find() method behaves similarly to the filter() method, but it only returns a single element. This method will stop at the first element that "pass the test", and return that. If none exists, it will return undefined.
๐Ÿ”ธ findIndex The findIndex() method behaves similarly to the find() method, but it returns an index instead of the element, This method will stop at the first element that "pass the test", and return its index. If none exists, it will return -1.
๐Ÿ”ธ reduce The reduce() method takes a callback with (at least) two arguments: An accumulator and the current element. For each iteration, the return value of the callback function is passed on as the accumulator argument of the next iteration.
๐Ÿ”ธ some The some() method takes a predicate function and return true if any of the elements in the array "passes the test".
๐Ÿ”ธ every The every() method takes a predicate function and returns true if all of the elements in the array "pass the test".
๐Ÿ”ธ includes The includes() method checks if an array includes a certain value among its elements, returning true or false.
๐Ÿ”ธ fill The fill() method replaces all the elements in an array to a given value.
๐Ÿ”ธ reverse The reverse() method reverses the order of the elements in the array.
๐Ÿ”ธ flat The flat() method creates a new array with all sub-array elements flattened into it. You can specify a depth. The default is 1.
๐Ÿ”ธ flatMap The flatMap() method applies a callback to each element of the array and then flatten the result into an array. It combines flat() and map() in one function.
๐Ÿ”ธ sort The sort() method is used to sort the elements of an array and returning the sorting array. Be aware that this method is mutating the original array.
If you want to learn more about JavaScript Array Methods, be sure to watch this YouTube video. I reimplement forEach, map, filter, and reduce. This often comes up in job interviews - acing this challenge will give you some serious points ๐Ÿ”ฅ https://www.youtube.com/watch?v=yU0Gh9T7sq8

My Notes:

Select to add to your #gallery:
Simon Hรธiberg

Pro Curator beta

$99 /year$4 /month*

*life-time BETA pricing. Don't miss out! Price will increase as features are added, but not for you!