Salesforce Facts by Abhishek

In order to remove decimals from a number in JS, we can make use of the bitwise not operator. Same can be used in LWC. Attached is an example screenshot.

We have null coalescing operator in JS as well and it works only with null and undefined. Attached is the screenshot.

Many times  in LWC or JS,  we need to check if an array of primitive types contains a duplicate or not. The indexOf() method can be used to identify the same. Example: const arr = ['a', 'b', 'c', 'a']; const result = arr.filter((row, index)=>arr.indexOf(row)!=index) if(result.length > 0){     console.log('array contains duplicate'); } else{     console.log('array does not contain duplicate'); } Reference:  https://flexiple.com/javascript/find-duplicates-javascript-array

We can create a simple word count logic for a long text area in LWC using some JS logic. Note: This doesn't cover consecutive spaces. Reference:  https://salesforce.stackexchange.com/questions/66249/word-count-formula#:~:text=Here%20we%20are%20counting%20the,%2C%22%20%22%2C%22%22)) Attached are the screenshots.

While working with LWC, Sometimes we need to add some additional attribute to any object structure for any interim processing and once done, they can be removed from the objects. We can use the object destructuring of JS to remove a particular attribute from an array of objects. Attached is the screenshot.

We can access data from apex controller in JS methods in vf page. Attached are the screenshots.

The getters can be accessed in JS file like the way we can access in HTML file in LWC. If we refer the api property as this.<property name> in JS file it will call the getter function. Attached is the screenshot.