ES6 #9: ES6 Default Parameters in JavaScript in Hindi 2020

Welcome, we will see the Default function parameters in JavaScript in Hindi. Default function parameters allow named parameters to be initialized with default values if no value or undefined is passed. In JavaScript, function parameters default to undefined. However, it's often useful to set a different default value. This is where default parameters can help.

In the past, the general strategy for setting defaults was to test parameter values in the function body and assign a value if they are undefined.

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[VinayKumar-ztxh]

He just said see my videos of advanced JavaScript whenever you get free time 😂😂. Brother we are here to learn javascript and you are providing amazing content. So learning it should be our first priority.

[manishakapil_delhi]

wow u really teach so well..it saves lot of time of mine in doing research.

[rahul-java-dev]

Thank you so much. Its helping me alot.

[aparichit]

Vinod outstanding explanation of all concepts.I wish u efforts will increase u r subscribers.

[sudharshanpani]

3 2 1 guys boom .
If you guys dont know what is this, you are still new to thapa technical.
Very meaningful vedio brother thanks.

[pawansaini]

Bhai plz. Vanilla javascript ke introduction video bano
Plz.

[manishkumarprasad]

what if we want to give default parameter to the first parameter of the function

[poddersudipp]

i also can define the value a=4 in const mult(a=4, b=4) in this way .it will be correct or not?ans dijiye pls

[AshokSingh-ebtj]

Here both != and !== are working
b = (typeof b !=='undefined')?b:10
b = (typeof b !='undefined')?b:10
Are these correct, we can use any one of those?

[JaiPrakash-kuit]

There is no video on the fat arrow function. If I am not find this, please let me know

[prakharmishra]

sir what skills are required before start of react?..
sir plz tell

[DEEPANSHU_NAG]

Osm work ✌🏻👏🏻👏🏻
4:59 typeof b ! == "Undefined" nhi samaj me aaya samajh digeye

[attianaseer]

iski thori samjh nahin ai
nechay kyu mult(4) kiya ye parameter to upar b pass karsaktay thay? jaisay b ka kiya

[shahamitx]

is it possible to get a front-end or back-end job without degree..?

[hiteshsuthar]

function sayHello(name) {
name??="david";
alert("Hi, " + name);
}

sayHello("het");

This is new ES12 feature of Defining default perameters.

[deepaksehrawat]

Bro please dont do this "3-2-1 and boom", its very irritating. Your videos are good. I like them but please dont use that stuff.