Sir what kind of teacher u r Aapne JS itne ache se padhaya h ki mere class me jinko JS me koi doubt hota h wo mujhse puchte h All credit goes to u sir I just love ur teaching style U r my role model sir
@@honblegaurav9917 Firstly it's a primitive data type and when assigned, a copy of the value is created and stored in memory (Stack). and secondly you're changing the copy of that not the original one. For more, watch 10th video of this playlist (previous one) stack and heap memory.
@@honblegaurav9917 new String('sahbaz') creates an object, not a primitive string. In JavaScript: When we use new String('sahbaz'), it creates a String object. This is an object wrapper around the primitive string "sahbaz".
I was working on my sideProject meanwhile when i just saw ur video, I paused my work and watched ur video, because I know ur video always add value to me, Thankyou very much sir ji !
In literal terms, your teaching prowess is nothing short of astounding. Even for someone like me, residing in a remote corner of the world, the wealth of knowledge I can glean from your guidance is boundless.
Slice ma thori ghalti krdi apna -8 will bring you to index 1 position and than you slice 3 charactor after it so you get "ite". thanks for lovely tutorial
but one thing Hitesh sir, your voice pitch and the way of clearing the little things is amazing ,i'm learning from this platform and addicted as well, not only with JavaScript but with the way you're teaching too ,i hope i will learn a lot from you ,thank you from INDIA(BIHAR ). sonal~~
Simple, straightforward, to the point what a tutorial, these kind of tutorial remain in mind for long time and strengthen basics which is most necessary
Thank you for making such a beautiful javascript tutorial. Because You teach the actual javascript which is necessary for actual production development need. Very Very thank you. I will share your channel as much as possible to everyone. I really like your teaching style and I aslo need that type of javascript teacher. God bless you.
Old way: Let a = name Let b = age let a = prompt("What is your name"); let b = prompt("What is your age"); document.write("My name is " + a + "and i am " + b + "years old") New way: let a = prompt("What is your name"); let b = prompt("What is your age"); document.write(`Hello my name is ${a} and I'm ${b} years old `); We use ` ` to write complete string and will use ${} to inject variables in it.
In JavaScript, you cannot traverse from a higher negative index to a lower negative index using the slice() function or any other standard string method. The slice() function, as well as most other string methods, expects the start index to be less than the end index when using positive indices or zero-based indices. When using negative indices, you can only traverse from left to right (from lower negative index to higher negative index) or from right to left (from lower positive index to higher positive index). You cannot reverse the start and end indices when using negative indices with slice(). const myString = "Hello, World!"; const slicedString = myString.slice(-1, -8); console.log(slicedString); // Output: " " const myString = "Hello, World!"; const slicedString = myString.slice(0, 5); console.log(slicedString); // Output: "Hello" const slicedStringNegative = myString.slice(-6, -1); console.log(slicedStringNegative); // Output: "World"
Best Practice: Use String Interpolation for concatenating. let rating = 'one' `Chai aur code is number ${rating} channel` // Chai aur code is number one channel Video to failega hi sir, this is surely going to be the platform for every developer. Thanks again for such a simplified explanation. really enjoying learning.
hello sir, I am from Pakistan I have no knowledge about coding, but I want to learn, I watch your html playlist, CSS tailwind playlist and now I am watching JavaScript.
The question was does the method change the original value of the string ? So the answer is no becasuse the string is a primitive data type so it is stored in stack and it value is copied . So that the reason
guys thora confusion hai last video me dheka tha String is primitive type which means stack memory and string (type of) is also string. But here i saw String is object and then in video 9:07 min hitesh says it did not change the original value ? like why if string is object then its non primitive and memory allocation should be done in heap memory which means it will change the value ? can someone please explain ?
Very practical, Application oriented simple explanation ,This seems different to me ..I hope you will make more useful videos.. -best wishes and_Thank You.
Ek confusion sir According to the last video strings are primitive so changes will be done in copied value. But when we declare the ' gameName ' variable using the ' new ' keyword, we can consider gameName as an object(Non-primitive). So why it can not change the original string. kindly reply in your free time.
Yes, you are correct that strObject is a reference to the String object created using the new String() constructor. However, the reason why the toUpperCase() method doesn't directly affect the primitive String value is because String objects are immutable in JavaScript. This means that once a String object is created, its value cannot be changed. If you try to modify a String object, a new String object with the modified value will be created instead. This is different from primitive String values, which can be modified directly. When you call the toUpperCase() method on a String object, it returns a new String object with all the characters converted to uppercase, rather than modifying the original String object in place. This is why the primitive String value remains unchanged, even though you called the toUpperCase() method on a String object that has the same value.
Your videos are a so lot knowledgeable. Thanks a lot Sir! I'm currently on my journey to learn react which I will start soon after I end this series. Any advice from you or my fellow peers here would be great !
Here is the all important methods of String let s = new String("Chhaya"); // here string s is an object console.log(s.toLowerCase()); // in lowecase console.log(s.toUpperCase()); // in uppercase console.log(s.indexOf('y')); // return index from beginning console.log(s.lastIndexOf('a')); // return index from ending position console.log(s.length); console.log(s.slice(0,4)); //print string from 0th index to 3rd index as ending index is excluded console.log(s.substring(0,4)) // Similar to slice but can't take negative value as an argument console.log(s.charAt(1)); //print char present on given index value console.log(s.includes("Chha")); //If given input present then return true otherwise false console.log(s.includes("shaya")); // return false console.log(s.endsWith("aya")); //return true if string is found from last let url = "www.userid?20.com" console.log(url.replace('20', '-')); //replace 20 with underscore let word = "Chhaya is Shanaya and she is a baby girl"; console.log(word.split(" ")); // return all the words from given string in the form of array let name = "Shanaya" console.log(name.concat(" Gupta")); //return String after appending given string let remSpace = " good bye guys " console.log(remSpace.trim()); // return string after removing unwanted space from beginning and ending but not from mid
at 9:18 sir stack par jab value create create ho to phr value ki copy milti ha but yhan to copy mil rahi ha r yeh ha bhi object type (heap based creation) How ? kindly explain
Thank you Hitesh for the wonderful content. But i have one doubt, you mentioned that Strings is an object not an array, and the indices we see in the chrome dev tools are key - value pairs. But how is it possible that there are methods such string.charAt( ) which accepts the index number and indexof ( ) method returns the index .. confused
original string is gameName and when you change gameName to uppercase, then the original gameName still becomes the same because first value gets stored in stack and only copy value changes. Please see the previous lecture of datatypes summary(primitive and non-primitive) to understand.
Thoda late night ho gya aaj but important ye ki video aa gyi. Series to complete hoke hi rhegi 😎
Thank you Sir par mujhe need aa rahi hai ise video ko main subha dekhu ga ❤️
Thank you for your time sir,, 💞
Thank u sir❤️😻
Better✨ than paid video..pw😁
Thankyou sir 👍
Sir what kind of teacher u r
Aapne JS itne ache se padhaya h ki mere class me jinko JS me koi doubt hota h wo mujhse puchte h
All credit goes to u sir
I just love ur teaching style
U r my role model sir
9:21 pe original value change kyu nhi hui hai? new String to ek object hai na? jo ki non primitive data type hai?
@@honblegaurav9917 Firstly it's a primitive data type and when assigned, a copy of the value is created and stored in memory (Stack). and secondly you're changing the copy of that not the original one.
For more, watch 10th video of this playlist (previous one) stack and heap memory.
@@TechieHeish1-bm2nd when you define using new its a non primitive data type bro. sir didn't tell this. check internet or stack overflow
@@honblegaurav9917 Exactly my question! why did it not changed?
Got it! it is non primitive when define using new String(). String is an object
@@honblegaurav9917 new String('sahbaz') creates an object, not a primitive string.
In JavaScript:
When we use new String('sahbaz'), it creates a String object. This is an object wrapper around the primitive string "sahbaz".
I was working on my sideProject meanwhile when i just saw ur video, I paused my work and watched ur video, because I know ur video always add value to me, Thankyou very much sir ji !
It is a humble request to all of you, don't skip the ad, hitesh sir is doing so much for us, we can at least see the ad of 30 seconds.
Don't worry, app sikh rhe, yahi bht h. Bs share krte rho series ko. Best mai bna dunga
@@chaiaurcodeThank you so much sir for providing this quality content
@@chaiaurcode ma tum aur aik cup chai from Pakistan. hahaha
mera toh premium hau yt mai kiya karu bhai 🙂🙂🙂🙂
@@Filmy_world_officialwow
In literal terms, your teaching prowess is nothing short of astounding. Even for someone like me, residing in a remote corner of the world, the wealth of knowledge I can glean from your guidance is boundless.
itni angrezi chodke kya sabit karna chahte ho
It took me whole 5 minutes to find where are backticks on keyboard 😂😂 Afterall amazing tutorial sir >>
same brother
Coding tere bass ki nahi hai rahne de
@@ashutosh6740 negative aadmi
2
3:55 its not string interpolation its know as template literals
Slice ma thori ghalti krdi apna -8 will bring you to index 1 position and than you slice 3 charactor after it so you get "ite". thanks for lovely tutorial
A point that should be noted from the video is when sir said that ,"Strings are the most powerful in any programming language".
but one thing Hitesh sir, your voice pitch and the way of clearing the little things is amazing ,i'm learning from this platform and addicted as well, not only with JavaScript but with the way you're teaching too ,i hope i will learn a lot from you ,thank you from INDIA(BIHAR ). sonal~~
Simple, straightforward, to the point what a tutorial, these kind of tutorial remain in mind for long time and strengthen basics which is most necessary
Crazy explanation understand everything 👍🏻👍🏻👍🏻👍🏻 thanks sir...
@chaiaurcode
Const count = ( apna_naam )=>{
return apna_naam.times()
}
Count(apna_naam) > Count(dusaro_ka_naam) ? "Hitesh bhai 😂" : "aam janta 😂" ;
Thankyou Hitesh bhai for you dedication towards teaching us 😊.
Thank you for making such a beautiful javascript tutorial. Because You teach the actual javascript which is necessary for actual production development need. Very Very thank you. I will share your channel as much as possible to everyone. I really like your teaching style and I aslo need that type of javascript teacher. God bless you.
Strings are immutable in JS so those methods return a copy of that string after performing operation.
Old way:
Let a = name
Let b = age
let a = prompt("What is your name");
let b = prompt("What is your age");
document.write("My name is " + a + "and i am " + b + "years old")
New way:
let a = prompt("What is your name");
let b = prompt("What is your age");
document.write(`Hello my name is ${a} and I'm ${b} years old `);
We use ` ` to write complete string and will use ${} to inject variables in it.
String interpolation
sir aapka concept or smile unique hai (Tq Sir)
"Master strings in JavaScript with this clear and concise tutorial. Great for beginners!"
"Chai aur Code deserves all the appreciation for making JavaScript accessible and fun!"
Give me ur num
all i can do is thank you for providing these amazing contents💛💛💛
Thanks for the Video sir .Depth knowledge means Chai aur Code😌
It seems like sir is standing while recording it . Great Content🙏
thankyou sir na aap humko jante na hum apko lakin fir bhi aap hamare lia video bnate iska fal apko zarur milega thankyou once again
sir Good job sir very intersting lecture Thank you so much sir next video i am wating next lecture
Sir this javascript course is of higher quality than paid course. Do the same, we will support you.
Day 3 continuing. Love you sir ji for this amazing content.
best javascript video I have ever seen
I know that you are the best teacher but if you continue like this you will be great teacher 👍👍
Sir Chai or NEXT JS start krain na please apka method bhot Acha hai feels like premium course 💙💜
Sir please explain this topic once more, with more examples
In JavaScript, you cannot traverse from a higher negative index to a lower negative index using the slice() function or any other standard string method. The slice() function, as well as most other string methods, expects the start index to be less than the end index when using positive indices or zero-based indices.
When using negative indices, you can only traverse from left to right (from lower negative index to higher negative index) or from right to left (from lower positive index to higher positive index). You cannot reverse the start and end indices when using negative indices with slice().
const myString = "Hello, World!";
const slicedString = myString.slice(-1, -8);
console.log(slicedString); // Output: " "
const myString = "Hello, World!";
const slicedString = myString.slice(0, 5);
console.log(slicedString); // Output: "Hello"
const slicedStringNegative = myString.slice(-6, -1);
console.log(slicedStringNegative); // Output: "World"
Thank you king, for the clarification 🫡🫡
Code to yaha hai Par Chai 😂 kaha hai Thanks sir padne mai mja aaya
Sir i watched many of youtube tutorials of JS but you Playlist of Js is the best ever ... thank you soo much sir love from pakistan
Best Practice:
Use String Interpolation for concatenating.
let rating = 'one'
`Chai aur code is number ${rating} channel` // Chai aur code is number one channel
Video to failega hi sir, this is surely going to be the platform for every developer. Thanks again for such a simplified explanation. really enjoying learning.
hello sir, I am from Pakistan I have no knowledge about coding, but I want to learn, I watch your html playlist, CSS tailwind playlist and now I am watching JavaScript.
sir please upload more videos , I really enjoying your content, and I have subscribed the channel
Hitesh sir on fire 🔥🔥
Back to back videos
Best video on strings in javascript 😍
woww, didnt know learning js is that simple, damn
SIR LAJVAAB MAJJA AA GAYA
I love the way of your teaching sir ❤❤
hitesh bhaiyya aap chai dikha kr pani pi lete ho lekin hm logo ka dil chai pe atak jata hai .
Thank you Sir for this awesome tutorial :)
vai aap chai bolke pani kiu dikha rha ho..........0:02
original value not changes as toUpperCase is a function which ulitmately falls in the category of heaps
lov your teaching method
The question was does the method change the original value of the string ?
So the answer is no becasuse the string is a primitive data type so it is stored in stack and it value is copied . So that the reason
Sir ap mazeed bhi courses ly kar aye apka bhot vip hai hindi main ❤❤❤ main regular follow karta ho
Kindly consider creating a TypeScript series in Hindi as well
sir your making Javascript simple
Keep going on I love your content. And I highly appreciate your hardwork.
awesome teaching style and very simple way to teach. thank you very much
guys thora confusion hai
last video me dheka tha
String is primitive type which means stack memory and string (type of) is also string. But here i saw String is object and then in video 9:07 min hitesh says it did not change the original value ? like why if string is object then its non primitive and memory allocation should be done in heap memory which means it will change the value ? can someone please explain ?
sir maja to aya, a manna padega
In Summary,String is not an array of character in Javascript. It behaves a way in which it allows you to access and iterate like an array
Aapka Video dekhne ke liye bhi "Chai" chahiye hi sath me, akele chai pite ho to yaad aa jati hai chai ki☕
Chai to zruri h ji
very nice sir from Bangladesh
One thing string is primitive or non primitive type because string is object
Very practical, Application oriented simple explanation ,This seems different to me ..I hope you will make more useful videos.. -best wishes and_Thank You.
Thanks for all your efforts🥰
You are the best sir
originial value change nhi hua hai cause wo stack memory mai store hai and usmai ek copy ko pass kiya jata hai direct referen ce ko nahi
0:39 nahi isley tho apke pass aye hai ap ey soch ke para rahe hai ki tum javascript pahle sai parke ayehogey 😢😢😢😢???
Ye to paani hai 😮😮😮😮😮😮😊😊😊😊😊
Congratulation SIR for #300k subscriber
Ek confusion sir According to the last video strings are primitive so changes will be done in copied value. But when we declare the ' gameName ' variable using the ' new ' keyword, we can consider gameName as an object(Non-primitive). So why it can not change the original string.
kindly reply in your free time.
Yes, you are correct that strObject is a reference to the String object created using the new String() constructor. However, the reason why the toUpperCase() method doesn't directly affect the primitive String value is because String objects are immutable in JavaScript.
This means that once a String object is created, its value cannot be changed. If you try to modify a String object, a new String object with the modified value will be created instead. This is different from primitive String values, which can be modified directly.
When you call the toUpperCase() method on a String object, it returns a new String object with all the characters converted to uppercase, rather than modifying the original String object in place. This is why the primitive String value remains unchanged, even though you called the toUpperCase() method on a String object that has the same value.
@@codetilllogn "This is different from primitive String values, which can be modified directly.".....primitive strings are also immutable.
👍 👍 @@codetilllogn
Thank you so much sir for this wonderful lessons.
Best playlist ever !
Strings methods are very important , practiced, Following.
Your videos are a so lot knowledgeable. Thanks a lot Sir!
I'm currently on my journey to learn react which I will start soon after I end this series. Any advice from you or my fellow peers here would be great !
very conceptual video sir
Awesome 👍
9:23 kyuki yay call by value hai
thank you bhaiya bohot easily samajh aarha h🙂🙂😇
sir sir sir kaha the aap ite dino se mile hi nahi , pehle milna chiaye tha
na
😁
sir you are great teacher
Here is the all important methods of String
let s = new String("Chhaya"); // here string s is an object
console.log(s.toLowerCase()); // in lowecase
console.log(s.toUpperCase()); // in uppercase
console.log(s.indexOf('y')); // return index from beginning
console.log(s.lastIndexOf('a')); // return index from ending position
console.log(s.length);
console.log(s.slice(0,4)); //print string from 0th index to 3rd index as ending index is excluded
console.log(s.substring(0,4)) // Similar to slice but can't take negative value as an argument
console.log(s.charAt(1)); //print char present on given index value
console.log(s.includes("Chha")); //If given input present then return true otherwise false
console.log(s.includes("shaya")); // return false
console.log(s.endsWith("aya")); //return true if string is found from last
let url = "www.userid?20.com"
console.log(url.replace('20', '-')); //replace 20 with underscore
let word = "Chhaya is Shanaya and she is a baby girl";
console.log(word.split(" ")); // return all the words from given string in the form of array
let name = "Shanaya"
console.log(name.concat(" Gupta")); //return String after appending given string
let remSpace = " good bye guys "
console.log(remSpace.trim()); // return string after removing unwanted space from beginning and ending but not from mid
Thank
Thanks
sir in replace condition if the string is "sukhmun" and i have to replace the 2nd 'u' with 'a' how we do that
best string methods video
3:47 variable inject is not working its print like nnksjcnjsn ${hsicjhh} ksjicjicoc
same
typeof gameName is object.if we write gameName=gameName.toUpperCase it should change into string
par glass mai to paani tha chai nahi😂😂.......jk, love u sir
Pretty easy way sir
at 9:18 sir stack par jab value create create ho to phr value ki copy milti ha but yhan to copy mil rahi ha r yeh ha bhi object type (heap based creation) How ? kindly explain
reference mil raha hai bhai memory ka copy nhi mil rhi
great sir
unknowingly 😅 i used string interpolation in my python lab. print(f”adgcgfff {var}”)
This video was very interesting
Thank you Hitesh for the wonderful content. But i have one doubt, you mentioned that Strings is an object not an array, and the indices we see in the chrome dev tools are key - value pairs. But how is it possible that there are methods such string.charAt( ) which accepts the index number and indexof ( ) method returns the index .. confused
Thank you sir :) please try to upload more videos in less time
Thaks sir! Very helpful and informative video
const newString = gameName.substring(0, 4) here 0 is the start point and 4 is length or count 0,1,2,3
Original Value change nhi hogi toUpperCase method me because string is a primitive datatype
Thank you so much sir ❤
Amazing video sir!!
really great content
keep up the good work..
Guruji Aap to chai ki jagah Pani le aaye😂😅😊
great Content
09:08 what is original string here i am a little confused can someone please explain?
original string is gameName and when you change gameName to uppercase, then the original gameName still becomes the same because first value gets stored in stack and only copy value changes. Please see the previous lecture of datatypes summary(primitive and non-primitive) to understand.
@@PrabeshPB but new String to object hai na sir ne khud hi to bola? to fir vo stack me kyu store ho rha? vo to non primitive data type hai
Behad Behtareen,