Throttling in JavaScript

How to write throttle function in pure JavaScript. Without using lodash, underscore or any external library. For click , scroll or mouse move events.
#javaScript #throttle #function
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[@girishpandey9976]

Interesting most asked topic

[@harshshah5511]

You just cleared the concept between the first 2 minutes

[@afsanefda]

Debouncing and throttling interesting topics. Thank you :)

[@mailtofinny]

Nice one. The much needed in today's real world scenarios...

[@VijayKumar-eq9ou]

Yesterday I requested the same concept. Now I got a notification. That's a lot for your efforts Sir Mr. Hemil Patel

[@nanasarathi]

Great... Thanks for sharing this knowledge...

[@manishhChaudhary]

Finally I understood clearly, what is the difference between debounce and throttle. Thank you. This is the best channel for UI guys.

[@Techsithtube]

Manish, thanks for an awesome comment. I am glad that you got the concepts.

[@MecchaKakkoi]

Great pair of videos, this and the debounce video.

[@franperc]

Every video you post is amazing! thank you

[@ravindrasahasrabudhe8484]

Awesome, both videos!. Thanks for sharing it.

[@anjananeema3216]

You are an amazing teacher, your explanations are awesome in each video!! Thanks for sharing!

[@olasunkanmiajiboye6658]

Your solutions are always better than the rest. Everyone else tries to use popular examples that I didn't get earlier and thinking you'd get it with their won explanation. Using a different approach with this button allows me to see from a completely different perspective.

[@SubodhKumar-gv3lg]

nice explanation

[@abby8360]

I really like your way of explaining things, always to the point for any concepts, you take very code examples that is used and can be used in almost all projects. All in a not too long videos. Thanks.

[@typicalBanglorean]

Best explanation ever 👌👌

[@sumitmobiotics3161]

great. a big concept is got cleared.

[@chaitanyaj4877]

You are an amazing teacher. I really love the way you are explaining things!

[@achyutrastogi8080]

Thanks for the succinct explanation of throttle vs debounce!

[@smrutikantnayak3652]

A nice technique..Thanks..

[@vikrantshirvankar6139]

Nice 👌

[@GhanshyamDobariya90]

Thank you sir....nice and easy explanation.

[@mdiqbalahmed3866]

nice explain

[@bronsonschnitzel7493]

Great content 👍🏼

[@radosawguchowski1206]

HI Techsith, good explanation of differences debouncing-throttling :)

[@shanmugarajakumaravel4584]

Explained in a nice way, You're always Rockkkssss. I am a fan of your videos keep on watching your newly uploaded and waiting for your upcoming videos, Thanks for you time to help us.

[@lamargtv2572]

superb sir, thank you

[@harshshah5511]

Techsith >> Namaste Dev

[@sivaprabha9745]

Nice tutorial

[@gilgameshgaming4210]

Thanks man that's really usefull explanation

[@EricEGunes]

Perfect ! Now I got it

[@problemsolverpaul]

great video !

[@edward101277]

Thanks for your help!

[@sagarkalokhe4793]

Nice info really great and useful

[@Techsithtube]

Sagar, thanks for watching!

[@foxfrito]

Nice!

[@dubeykivines9202]

Great method thanks

[@michaelj91]

Thank you so much for the videos! Do you conduct interviews? @techsith

[@kirank3368]

This is pure good 👍🏻

[@sachinmaskalle]

could you plz make video on security concepts like xss csrf etc . BTW much needed implementation of throttle fn

[@ikurbano]

I did learn something new and I lllllllllliked it!

[@vizzyphd]

TROTTLE... O.o
Thanks for the vids

[@Himanshumeenamnnit]

can also be done as:
function throttle(fn, wait) {
let timerId = null;
return function() {
if (timerId == null) {
fn();
timerId = setTimeout(() => {
timerId = null;
}, wait);
}
};
}

[@Techsithtube]

Himanshu, Thanks for sharing!

[@TheAbhicraze]

@@Techsithtube Does the above code create any memory leaks as we are not clearing the timer after the delay everytime..?

[@themynamesb]

yep it does

[@mahendrakulkarni1036]

Love the way you explain, please create videos on vue js...

[@chirag5628]

THANKYOU 🤞

[@kkk24157]

Good one. But can u plz describe more how the return function taking rest arguments(...) And how it's executing by click event listener. A console log example will be great to understand

[@my_vk_vlogs]

Hi Techsith,
I got a clear understanding of both(Debounce, Throttling) concepts. Here is one small clarification if we are developing a real-time application we are going to use a "spinner" or "loader" concept, And using spinner we can avoid multiple API calls or Submissions. In this situation, it is necessary to implicate Debounce or Throttling instead of the spinner. Please clarify my doubt
Thanks

[@utsavsharma2979]

Can't you use settimeout in throttling just as you did with in debounce. Because I think that would be much easier to implement and understand

[@VIVEKsingh-gk3et]

Can you please make a video on event looping and if you have already made it, then please provide the link. Thank you:)

[@thankfulnes]

Thanks! Debounce is better performance or same?

[@Techsithtube]

The difference is more about the experience than performance. Throttle and Debounce have different applications.

[@dhananjayapattnaik7428]

Can you tell me please why we choose higher order function..I could not understand there..

[@questreal5812]

why do we need to put last = now?

[@GaneshKumar-fv2cg]

Sir - May be a naive question. How the 'e' maps to the ...args inside the throttle function?

[@ankursehdev1583]

arguments is an Array-like object accessible inside functions that contains the values of the arguments passed to that function.
If you're writing ES6 compatible code, then rest parameters should be preferred.
function foo(...args) {
console.log(args);
}
foo(1, 2, 3); // [1, 2, 3]
It can be anything actually!
function foo(...helllo) {
console.log(helllo);
}
foo(1, 2, 3); // [1, 2, 3]

[@DanielHarrisCodes]

If I was posting some data to an API, what's the advantage to using throttling to prevent multiple clicks vs disabling the button and then re-enabling once I get the response back?

[@Cognitoman]

that works too man. I do that sometimes as well

[@Cognitoman]

but what if you get a response back really fast like 1-2 secs and they spam it to much, you might wanna limit it too 5 seconds or something

[@sivanandamv7400]

Please discuss about mobile first vs desktop first responsive design approach. which one is best?

[@Techsithtube]

these days, its pretty simple. everyone is going mobile first as mobile has more and more traffic.

[@sivanandamv7400]

@@Techsithtube Thank you so much.

[@devanii]

i use this on a link but when i clicked multiple times the page reload..one click doesn't do that..it do its job but why the page reload when clicking multiple times i do not understand that

[@avag001]

a nice comment)

[@sanjaybhan1585]

Video required for, how to secure JS apps, not only obfuscation, code-protection, anti-debugging etc or kindly share some helping links

[@Techsithtube]

Sunajy, they are all good topics. I will plan to make them. Thanks for suggesting.

[@my_vk_vlogs]

we are waiting for your videos like how to secure js application and web-security concepts

[@lutif1415]

you missed the event's in between those 5sec window.
In your explanation you said if I click 5 times in say 3 sec, and throttle window is 3sec. My 5 events will be fired but once in 3 sec. While your implementation you are destroying in between events . So in above case, only one event will be fired instead 5

[@ttma1046]

missing the closing parentheses

[@sten6160]

there is no need to `return` in the last line. just execute the fn

[@TheGryphon14]

We need to pass a callback to addEventListener. That's why the return is needed

[@nuttchokwittaya8225]

​@@TheGryphon14 Isn't it a return statement already? return (...agrs) => {...}

[@TheGryphon14]

@@nuttchokwittaya8225 you're right. I was wrong :D

[@mike.crantea]

Quote: "this function is not fun" :D bwhaha

[@nileshinkane6034]

Tamaru naam to Hemil Patel che, enu mtlb tame Gujrati cho

[@Techsithtube]

Ha Gujarati chhu.

[@themynamesb]

Hi techsith... I have tweaked your debouncing code to make throttling code.. I tested it and to me it looks fine.... Can you please also confirm ? Link: jsfiddle.net/mntk15fg/