Basics of variables and constants in javascript
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- เผยแพร่เมื่อ 15 ต.ค. 2024
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courses.learncodeonline.in/learn/Javascript-for-2018-developer
Hi Hitesh, I'm loving your channel, I've decided to start with JavaScript and when i need a break, Java itself, so i'll learn both at the same time kind of.
I have a simple question I'd love an answer too, with Javascript or Java, is it possible for me to make just a tiny little desktop program that you can click, that when clicked it can automatically open say, Google Chrome search window for you? I want to do this as nmy firsat program, simple little program, click it, in the little box it says "Connect", i click it, and the program goes and open google chrome for me as i have it set like that in the code. I just want to know if it's possible? Thanks!
let ram having money = 100
let money given to ram by sita = 25
let money given to ram by gita = 29
let total money ram have = ram having money + money given to ram by sita + money given to ram by gita
I have tried this code for practice, but it's not working. Can you please tell me why it isn't working ?
ohkk. sorry. I got that. camel case worked for me. Thanks alot hitesh sir.
Sir can you please tell me how can i use cmd on windows I tried but couldn't
Thanks for RAIN OF JAVASCRIPT
So much video in one day..
Your voice tone is just so encouraging ,Thank You Sir.
Hey guys hitesh back again with another episode of JavaScript we gonna break the record uploading videos in a day 😁
One question related to " const". When we load a page that time const are assigned, generally data will be coming from back-end. So on page load whatever value is set in const will be there till the time till that session time only, if we change anything in back-end, the same will be apply on next page load? So do i assume that const will just hold its initial value only for that particular page load session?
Hi, I am using windows 7 and in my cmd prompt , " node variables.js" is running but not showing the output, could you please help me out with any suggestions.........
Love the way u explain...m beginner and its just perfect for me. Thanks
You are welcome
Simply One Word "OUTSTANDING" your videos are GREAT and the way you teach is amazing ....SIR THANKS VERY VERY MUCH
I have seen var used to represent a variable in JavaScript. Is there a specific rule of when to use let to represent a variable as opposed to var? Is one method better than the other?
Awesome tutorials sir you are doing so much for the people who don't even have enough money to buy tutorials on your website .This series also helps those who want to demo of your tutorials thank you so much
Hi Hitesh
I can also use the variable without let as a keyword. Is it necessary to use let?
what's differences between "var" and "let" when we declare a variable brother?
why dont you use Var instead of let. i ask because im learning based on Var. im just asking :)
I know JS is smart language and a semicolon is optional in it but I think in my opinion using a semicolon is good practice until you are not using PUG instead of HTML, SASS instead of SCSS and JS, PYTHON, KOTLIN instead of JAVA, C,C++ or anything else ,where semicolon is mandatory. :)
why dont u use var name=‘john’; please explain .
"Have patience, without patience u can never be a good programmer." u nicely said sir,
Watching this JS series to start the MERN Bootcamp which i bought today. #MERN@199.
#ThanksForAllYourAmazingVideos
Sir I have encountered a interesting doubt
const string='java'
const STRING='script';
const String=' is Easy..!!'
console.log(string+STRING+String);
i got the output: javascript is Easy..!!
without any error but the VS Code editor show the three variable names String,STRING and string with three different colour...ideally all the variable names should have same colour
Sir please show some light on the situation what is happening ?
Do we use the( let) keyword to declare variable?
can't we run those codes in that GUI environment/ide bcoz I don't like to use the command prompt or terminal
Why are we using let to declare variable where we use var to declare in javascript
Without let or var keyword my all variable smoothly work! So, why I use both? May I use these only using const keyword?
Can i use the terminal in vs code to produce the output?
Thanks in a million! Great teachers are hard to find.
Dear Sir,
you should make these programming tutorials on many languages they are very helpful and I am starting to like this already.
More are available on my website.
"""""
let r = 33
let bonus = 20
let total = r + bonus
console.log(total);
/*
Exception: SyntaxError: redeclaration of let name
@Scratchpad/1:1:1
*/
"""""
now what is this sir?
Dude, you're an incredibly good teacher.
how to use javascript with html for example created a button using html and want to work this button then how it posible
Thanks sir. I have been following you from a long time. Your videos helped me a lot. I want to go into web development. I have learned html and css. Now i want to learn JavaScript. You are using node.js here. I am little a bit confused how i can use this in web development? Please help me out in getting started.
Sir which theme are u using in Vs?
let or var ? both of them are different? or same ?
Sir we r using var insted of let than whats differnce in that?
What is difference in using let and var in JS... can't find it
hello sir, while using let name = "John" and console.log(name), the error of name is @depreciated is coming, even after using var. how do i solve this error? pls help sir and other fellow users...
let name= "john";
console.log(name);
hey, I am a IT student and i have learn java Script basics before, we were writing it in and running in browser .
But what you did is completely different and we have't declared variables like that.and we never used node i am not getting why it is different.
I think you should start from 1st video.
Hi Hitesh, can u please explain difference between var and let keywords
Tha way people run NGOs for social services for the helpless people
In the same way you run the TH-cam channel,we help people
Really really love u sir 😊👌👌👌👌👌👌
Thanx Sir dil se
I am writing the code in Visual Study. Can anyone please help me that is how to run the code. I have typed but is not able to run it. Please help me
please tell how to download the sublime text that u are using............provide link for every things.................
its not working on cmd using windows.........so use........node fullname_of_the_file_with_path then press enter key...............
like node E:\foldername\filename then enter
Can you explain phases of web development for learning... Like fist html then css and next js.
Reply would be helpful!!
can you explain the diff bw var, const and let and their scopes?
const name ='priyanth'
{
const name = 'Raju'
console.log(name);
}
In the above example am getting o/p raju how it is possible to change const value pls explain
how to update the node -v in ubuntu...
while runing variable.js
following msg appear in my terminal--/home/harendra/hiteshSir/variable.js:1
(function (exports, require, module, __filename, __dirname) { let name = 'john';
^^^
SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode
at exports.runInThisContext (vm.js:53:16)
at Module._compile (module.js:374:25)
at Object.Module._extensions..js (module.js:417:10)
at Module.load (module.js:344:32)
at Function.Module._load (module.js:301:12)
at Function.Module.runMain (module.js:442:10)
at startup (node.js:136:18)
at node.js:966:3
Can we have var as variable instead of let ?
after running the program in command prompt the output is not showing please help sir
Hello Sir, if I am adding 100.0 and 20 , why the result is not coming in decimal number?
The result of addition is "120.0", which is nothing but "120". may be that is why it not showing up decimal or float numbers. Please try to add with 100.05 or give any integer after 100.0, that should give you decimal value in the addition result.
My Command Prompt Doesn't work :( Can you help?
Amazing tutorial Hitesh, thank you for uploading free yet outstanding content.
hi hitesh ,
whats the difference between 'aman' and "aman" , using single quote and double quote ?
Aman Shrivastava there is no difference in there it's just depends on preference to use single or double quotes
izaan jahangir thanks
its fun and awesome after watching your consistency
Name =20; also works y?? Even if its not declared
Try make it a practice of using semi colon to close statements and you could have use the internal terminal in visual studio code.
what's the difference between a var and let
Sir you are really a great teacher.
So as I learned earlier that "var" is the keyword use to declare a variable. So why is it "let" here?
there are some subtle differences between their scopes
var is scoped to the nearest function block and let is scoped to the nearest enclosing block, which can be smaller than a function block. Both are global if outside any block.
I am so thankfull to you, for making such videos for us.
Other than skills u do have a good vocal with awesome communications
Thanq for this course sir.....it's will improve my concept of js
please explain difference between usage of let and var.
What is node.js???please explain me in detail sir
Thank you so much man!!! Java Script is much easier than c++ I learn so fast with you love ya!
let firstName = 'John'
let lastName = 'Doe'
console.log(firstName + ' ' + lastName)
it print the single name what if we print multiple name?
space in single quote
What would happen if u add name and bonus.??
i think we'll get all all part of this series.. saltue sir
Hey why youtube is not sending notifications?..
what is difference between "let" and "var".
var and let are the same and totalscore is not printing in browser.
I love u man hitesh you are a great inspiration to me are you going to make Vue js. videos
4:42
All humans made mistakes!
All humans _will continue_ to make mistakes
We all are humans...(except some I think...)
#humans
awesome course sir
i m loving it
bro you solved my problem thanks
Back to back 4th video.Yeah!!!
Sir what is the difference b/w var and let.
I Never discussed var. :)
i commented before watching your next video
but you used it in next video
Upload more videos from the course sir😊😊
when i write let is showing error in dreamwever
Thanks Hitesh
hummmmm
i learned alot today i am 14 year kid i want to learn i play games so i want to make a game my self
i think their is another method too: console.log(first_name+ '\t '+last_name)
i cannot believe you giving this for free
just one word
AMAZING !!
It's fun to learn with you sir ,thanks ❤️
please also do some practical use of javascript where we can learn real life applications BTW amazing videos 😍 😍
Sir are we getting the whole series today😀
nahhhh, not that quick because videos need to be polished and need to be in same audio and video quality.
Hey guys!! there s a faster way to run java scripts using the code runner extension, just search up code runner in vscode extension's tab and install it.
Wow its very nice thanku soo much:)
Hey sir, We can call variable by 'VAR'
Yep, but let and const are more of a standard now.
How can I setup my atom for different languages I don't know how to do it..
great javascript series...
Showers of Javascript!!
make a video about progressive web app and it's future
Keep uploading😀😀
Awesome sir
Thank you sir
always present sir
Great sir
thankuuu sir....
TH-cam is gonna be mad it not even sending me a notification
#dumb_TH-cam
good video :)
Nice :)
great :)
present sir