JavaScript Tutorial in Hindi for Beginners [Part 5] - JavaScript Variables (let, const, and var)

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#Javascript #Tutorial #Hindi

In this video i will talk about Variable (let, const, and var) in JavaScript

In this Video Tutorial series I will giving you full training about Javascript from basic to advance level with easy and best explanation. If you like this Javascript tutorial in Hindi do leave us a comment.

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सर् मैंने आप से ही HTML, CSS सीखी है । और अब java script सीख रहा हो। आप के समझाने का तरीका बहोत अच्छा है और एक बार मे syntax भी क्लियर हो जाता है। सर आप जैसे टीचर की ही इस देश को जरूरत है ना कि बड़े-बड़े कॉलेज के ढकेदारो की जरूरत है। ❤️🇮🇳❤️🇮🇳❤️🇮🇳❤️🇮🇳❤️
Thank-you sir I'm always your thankfull for sharing your knowledge for free .

rajatchaurasia

Bro you are teaching in so much depth
Great and Perfect for Beginners 👍
.
Though to some, who already know programming languages it may seem quite boring 😂 - But that's a compliment for u coz didn't expected so much detail 🙏

dernyt-tpe

Bhayeya thanks a lot exam time p bahut help mil rhi hai bs js complete ho jaye ty bhayeye🙏🙏🙏🙏

sunilchamoli

omg what an examples, perfect to understand the concepts, which i didnt know for long time--thanks a ton.. u r a pro MAN

chandnithakkar

Really I want to learn JAVASCRIPT from your video only sir...
Nice Video👍👍thanks sir

sir

Thanks bade bhai mughe aapki video ka bahut intezaar rehta hai

travelagent

I am from pakistan sir
Bohot khub samjhate ho ap
Allah pak apko khush kare successful kare

muhammadihaideri

Thanks you so so much sir 😍
Please try to upload video daily please sir 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏

Who argee with me

mega-robotff

Thank You bro aap bhut acha smjaate ho

superstartadka

Sir, I have seen your videos. You have explained very well in it. So, why you don't available on digital class?

mahisharma

Sir you taking loot of time to upload the javascript sir i was wating for but too late

codeionic

Thank you very much sir for uploading this tutorial.please complete this tutorial as soon as possible.please

anumulasravani

There are three ways to declare a variable.

/*1.var->if we declare a varibale from var, then we can also declare it again with the same name. and if we want to re-assign its
value then we can do that too.*/

var aditya="35";
alert(aditya);

var aditya="aadi";
alert(aditya);

/*2.let->if we declare a variable with let, then we cannot declare it again with the same name, but can re-assign its value*/

let sangam=46;
alert(sangam);

//will show error as it is re-declared
// let sangam="aadi";
// alert(sangam);

//we can re-assign its value
sangam="smart";
alert(sangam);

/*3.const->if we declare a variable with const, then we can neither declare it agian, nor can re-assign its value*/
const swaraat="hero";
alert(swaraat);

// TypeError: Assignment to constant variable.
// swaraat=60;
// alert(swaraat);

lateralAdityaRaj-djvf

thank you so much sir to provide all details very easy way sir I learn from your channel. from my point of view it's just a small diff. b/w var and let if we declare a variable from var, then we can also declare it again with same name and if we want to re assign its value then we can do that too . like var name ="abc"; var name="xyz"; it work but in let we can't use same name declare again but assign value same. like let name="abc"; let name="xyz"; that name show error or red line below.

karankapoor