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I do not understand why it must be exactly 4 characters and what is the concrete benefit of "^" and "
quot;?
code
metacharacters
python
12 Votes
2 Answers
24th Mar 2018, 12:55 AM
Vučko/Вучко/Vuchko
How many times i must learn Curses for i can do codes on the code playground?
c++
codeplayground
java
4 Votes
2 Answers
3rd Nov 2017, 4:30 PM
Hugo Johansson
I want to delete a div with js using removeChild method but I must run the function twice why?
functions
html
inheritance
javascript
methods
objects
0 Votes
6 Answers
4th Apr 2019, 9:11 AM
Mahmood moridsadat zadeh
The variables must not be a key word ..or name of method or class
c#
variables
1 Vote
2 Answers
4th Sep 2016, 6:14 PM
Fatma Hussein Al-Amoudi
I wish to write graphik uses interfeice for my operation system whot i must to read and study?
gui
2 Votes
6 Answers
7th Dec 2017, 10:37 AM
Jacob Sudgev
Can anyone explain me why we must mention name and value in the input attribute
forms
html
1 Vote
3 Answers
21st Aug 2016, 6:59 PM
Manoj Srivatsav
In case if aomeone wants to be a game developer which languages are must ?
help
scripting-languages
0 Votes
2 Answers
13th Aug 2020, 10:11 AM
navigatio page
Can u guys tell me,is C and C++ is same?I want to creat games so what must i chose
c
c++
java
javascript
5 Votes
4 Answers
5th Mar 2018, 1:09 PM
Jerry
USING FOR LOOP ACCEPT THE NAME HOBBY AND AGE OF 5 FRIENDS AND STORE THEM IN A TABLE.DETAILS MUST BE ENTERED BY USER.
java
jgrasp
0 Votes
13 Answers
17th Feb 2020, 1:35 PM
abdifatah Adow
How much times that I need to be a professional in Web development and what language programming that I must learn?
question
1 Vote
8 Answers
5th Jul 2019, 7:26 PM
ahmed elhamri
Must I always call window.onload function in JavaScript? What's the work of it and what happens if I don't call it?
javascript
web
website
4 Votes
2 Answers
10th Jul 2018, 4:17 PM
Emeruche Ikenna Cole
I want to be a web deverloper . how many language i must learn for my job?
basics
c++
html
java
php
visibility
website
2 Votes
4 Answers
19th Dec 2016, 5:46 PM
Megax Xel
Do you think Sololearn must include Go Lang in their Course List ??
android
apps
code
go
google
java
operating
programming
python3
system
0 Votes
1 Answer
6th May 2019, 9:37 AM
SK 16
How fo you code a question but if A is selected it must say something else as when B is selected?
c++
0 Votes
13 Answers
1st Jan 2017, 5:39 PM
erik
Pls must I upgrade to pro before i can continue continue with python variable?
assignments
operator
-2 Votes
2 Answers
21st Oct 2021, 2:47 PM
Jonathan Samuel
In java, why we have to save a file name of java program is also must be same as the program's first class name...
java
15 Votes
4 Answers
28th May 2018, 8:34 PM
madhina
What's the meaning of nesting,,,,,,?!!,,and why must one use css for colours to appear or is html5 alone enough
html5
3 Votes
3 Answers
17th May 2019, 8:02 PM
Flocky Ragnarok
What programming languages must i need to prioritize to help me become a certified ethical hacker one day?
ethical
hacking
programming
security
2 Votes
5 Answers
29th May 2017, 11:20 AM
Bryan Solidarios
[PublicRoute] is not a <Route> component. All component children of <Routes> must be a <Route> or <React.Fragment>
create-react-app
help
public-route-component
react
route
routes
urgent
1 Vote
1 Answer
14th Nov 2022, 3:00 PM
Asha
Is HTML some type of prerequisite language you must know before learning JavaScript
html
javascript
0 Votes
2 Answers
11th Jan 2018, 7:59 PM
Malik
PHP form not working WHY? IT must warn user if blanks are empty
form
not
php
working
0 Votes
2 Answers
10th Jun 2017, 11:03 AM
Nodirbek
What i must do to prepare me for game engineering 3d,2d all type games ?
coding
2 Votes
2 Answers
4th Aug 2017, 2:54 PM
ALEX
What the right langage that I must start whit it and howa I order it
langage
2 Votes
2 Answers
26th Feb 2017, 12:45 AM
Hamza Elidrissi
What are the important points in JavaScript , beginners must have the knowledge ?
javascript
1 Vote
1 Answer
23rd Jul 2019, 11:54 AM
Balram Singh
What I must learn basics to be able to participate in a blockchaim hackathon
blockchaim
hackathon
programming
-2 Votes
2 Answers
31st Dec 2021, 12:04 PM
ieacer7
Why High tension supply of very large voltage must have high internal resistance ?
physics
2 Votes
1 Answer
7th Aug 2017, 1:27 PM
syscall
To all beginners. Not because it is a number, means it must be an "int"/"double"/"float" datatype.
c#
c++
java
3 Votes
2 Answers
2nd Feb 2017, 2:52 PM
Erwin Mesias
I don't know how to use \n , I mean at what place must it be used
python
strings
2 Votes
4 Answers
2nd Feb 2018, 3:52 PM
piyush v
if SQL is query language for all the databases then their must be common syntax too ?
sql
3 Votes
3 Answers
12th Jul 2016, 4:43 AM
Suryaprakash Tiwari
Is it ok if i have trouble memorizing codes, sometimes i forgot it and i must learn it again
css
html
javascript
0 Votes
5 Answers
23rd Aug 2022, 6:26 AM
Alex Polo
Help: Entrepeneur question. ¿How can i make a site like this? ¿Wich is the learning path y must follow?
css
html5
javascript
node.js
web-storage
website
0 Votes
4 Answers
6th Sep 2019, 5:30 AM
Saúl Rodríguez
The program must be print SoloLearn as the output Where S and L are in upper case??
python
0 Votes
2 Answers
17th Jul 2020, 4:19 AM
BALAJI RP
why need to use int? why not just float everything since float must containt and accept integer?
c#
variables
0 Votes
5 Answers
25th Sep 2016, 4:38 AM
Maximilian Yuen
Where can I find code exercises in Java for example intersection, union, search ect.? All must have input and output
java
python
0 Votes
7 Answers
12th Jun 2020, 4:35 PM
Jerri James
Don't you think that SoloLearn developpers must add problems to get ready for the IOI or ICPC? at least for beginners!
cpp
icpc
ioi
programming
python
5 Votes
6 Answers
5th Dec 2017, 10:21 PM
achraf maghous
To end a "While Loop" permanently, a "Break" statement must be used. Can you please help to explain how?
loops
0 Votes
6 Answers
24th Feb 2019, 4:06 PM
Wanangwah
Why must one close the file? What happens if a file is not closed?
files
python
0 Votes
2 Answers
7th Dec 2017, 4:54 PM
Zach
Which of these must be done with regular expressions, rather than string methods? Checking whether a particular character is in
n
0 Votes
4 Answers
5th Feb 2023, 6:34 AM
aryan
What should i learn except in Java ?
2018
java
must
noobie
recent
1 Vote
3 Answers
12th Aug 2018, 5:16 PM
Keep It Simple Stupid
What does href stands for. Then why must we have an a before the href check the description
css
html5
links
1 Vote
3 Answers
5th Jan 2021, 8:26 AM
owadokun Tosin Tobi
whan can do write a operator same "or", but just any of two operant must be true ?
c#
operators
1 Vote
5 Answers
4th Nov 2016, 11:13 PM
KiynL
This code works with even numbers too, but he must skip them. What i did wrong?
python
0 Votes
1 Answer
25th Jan 2022, 4:25 PM
Maks Kamerrer
How do you what point in your java code must you add a main method() ?
callingmethod
developers
java
main
methods
programmers
0 Votes
2 Answers
26th May 2019, 1:44 PM
Iredafe Owolabi
I have a project, i must make an application using C++, i need your recommendation what application i should make ?
c++
0 Votes
10 Answers
1st Mar 2017, 10:41 AM
Muhammad Bimo Abditama
Hi guys, what's the difference between Order By and Group BY?. When must I use Group By?
groupby
orderby
sql
1 Vote
2 Answers
13th Apr 2019, 7:36 PM
Tolulope Patrick
the program must accept a string value and print it twice ex: input = bars output = barsbars
c
c++
0 Votes
2 Answers
28th Jan 2019, 2:43 PM
Nikash
So it's a matter of must for me to learn JavaScript after learning HTML.?
html
javascript
0 Votes
2 Answers
25th Sep 2016, 2:23 PM
Sidepocket
if i make android game on java and export her. i have jar file, but i need apk. What me must doing?
android
games
java
1 Vote
10 Answers
24th Apr 2018, 10:22 AM
Vladyka
Sololearn must improve the quality of the Q&A Discussions and comments or this app will go down! We should discuss this problem!
change
discussion
feedback
improvement
quality
sololearn
suggestion
4 Votes
8 Answers
21st Dec 2016, 10:25 PM
elkaralis
Must I complete html and html5 before moving on or can I skip html5 and come back
html
html5
0 Votes
4 Answers
18th Oct 2016, 6:30 AM
Eyesmile
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