Consider an Array
Let’s consider an array:
let arrary = ["data1", "data2", "", "10", "", undefined, 25, null, 40];
We are going to remove empty, undefined and null values from this array.
To remove these values we will use
filter() method. Let’s use this:
let arrary = ["data1", "data2", "", "10", "", undefined, 25, null, 40]; const filtered_array = arrary.filter(el => el); console.log(filtered_array);
Now check the console log and the output looks like:
(5) ["data1", "data2", "10", 25, 40]
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Below you will find some common used markdown syntax. For a deeper dive in Markdown check out this Cheat Sheet
Bold & Italic
Bold **double asterisks**
Three back ticks and then enter your code blocks here.
# This is a Heading 1
## This is a Heading 2
### This is a Heading 3
> type a greater than sign and start typing your quote.
You can add links by adding text inside of  and the link inside of (), like so:
To add a numbered list you can simply start with a number and a ., like so:
1. The first item in my list
For an unordered list, you can add a dash -, like so:
- The start of my list
You can add images by selecting the image icon, which will upload and add an image to the editor, or you can manually add the image by adding an exclamation !, followed by the alt text inside of , and the image URL inside of (), like so:
To add a divider you can add three dashes or three asterisks:
--- or ***