Q&A Discussions

6th Aug 2020, 9:58 AM

Raj Mhatre

Optional argument

methods

1 Vote

What are optional binding and optional chaining in Swift?

12th Jun 2020, 3:08 PM

Sanket Sharma

chaining optional_binding swift

15 Votes

22nd Dec 2017, 4:05 AM

Abhivarshini Maddala

Optional Arguments

0 Votes

Is !doctype declaration optional

12th Jan 2019, 9:14 PM

TOMMY

!doctype html tag

9 Votes

11 Answers

12th Jul 2019, 9:31 PM

Boakye Osei Benjamin

Optional parameters question.

ruby

0 Votes

Optional Arguments C# Need Help!

11th Dec 2017, 6:45 AM

Michael Brown

0 Votes

How do Optional Arguments Work?

27th Jul 2017, 11:57 AM

niccoob _

0 Votes

Optional class(java8) vs try block

2nd Jan 2018, 2:25 AM

Daniel Sá

optional try

1 Vote

Optional learning resources for programming

26th Dec 2018, 10:30 AM

SArat

coding css html javascript learn programming resource

1 Vote

Is public keyword is optional in java

15th Jun 2019, 3:07 AM

T R I T O N

classes java methods

6 Votes

Query Parameter optional in Scopus API

29th May 2017, 2:33 PM

Rahul Roy

api parameters query scopus

0 Votes

How to make optional parameters is C++?

25th Sep 2023, 9:33 AM

นฤสรณ์ อริยสกุลวงศ์

c++function-arguments functions macro macros parameters

0 Votes

How to request optional additional input in Python?

29th Jun 2020, 9:23 AM

Clueless Coder

input python question

8 Votes

Anyone can simplify how optional arguments work

24th Feb 2018, 10:58 PM

Erik Umble

methods

0 Votes

Is parseInt and parseFloat now optional in JavaScript?

30th Mar 2017, 3:39 PM

Wili Camacho

beginners conditions javascript loops parsefloat parseint

6 Votes

How do I use optional arguments in python?

26th Nov 2019, 12:15 PM

Surveyor

function-arguments python

2 Votes

After break we can add an optional statement??why??

11th Oct 2017, 10:06 PM

Daniel Andrés González Llano

java switch

0 Votes

What's the difference between optional and required parameters?

28th Mar 2017, 4:05 PM

abhijit mishra

c#methods parameters

0 Votes

How do I use optional arguments in python?

12th Dec 2016, 12:43 PM

Scott

function-arguments python

0 Votes

Why python documentation have written optional argument like str.endswith(suffix[,start[,end]])?

11th Oct 2017, 10:05 PM

Daniel Andrés González Llano

python

0 Votes

Why do I get errors on Optional variable declaration?

28th May 2020, 7:40 AM

Rahul Gill

optionals swift

0 Votes

does optional arguments considered as overloading the method ?

11th Aug 2019, 3:54 AM

Jacob Schneider

1 Vote

it'd be nice to have optional exercises for each lesson

1st Mar 2017, 10:38 AM

Qusai

exercise

3 Votes

Can i use else loop as optional ? Is it correct or wrong?

18th Nov 2016, 9:13 AM

Sasha Kang

java

-1 Vote

7 Answers

2nd Oct 2021, 11:09 AM

Amala Yakin

Why do we use #include<iostream> in c++ language it's compulsory or optional ?

include<iostream>

0 Votes

What do the question marks mean in the following connect function in react-redux? Optional parameters?

5th Mar 2021, 4:44 PM

muhammad nafi'u

connect mark question react react-redux

4 Votes

Is the fclose() function optional or should be writen when creating single file.

14th Jan 2021, 8:17 PM

Sonic

files php

1 Vote

I don't understand Optional Arguments and how to make a default value.

14th Oct 2016, 6:53 PM

Cliff James

0 Votes

28th Dec 2016, 7:45 AM

Telole Folo

Explain.

arguments Optional

0 Votes

Can I ask why it is optional to add an '/' in img tag in html?

3rd Feb 2017, 9:52 PM

Christopher

images

1 Vote

The size of first dimension (first index) is optional in array initialization. Explain

25th Dec 2020, 9:26 PM

Someones

arrays c++indexers sizeof

0 Votes

23rd Feb 2017, 3:38 PM

Srikanth Srinivasan

swift input

input optional swift

5 Votes

I wonder.... the indentation in Ruby is optional for clearer code.. or mandatory like in Phython...

13th Sep 2020, 5:35 AM

Zhengrong Yan

if-statements ruby

1 Vote

Is semi colon optional in JavaScript? If so is it best practice to use it and why?

22nd Oct 2016, 10:59 PM

Nelson Urbina

javascript node.js programming syntax web

2 Votes

it's optional or so is there a difference between two for loop with and post and pre-incrementation.....??

1st May 2019, 10:50 AM

Hamdan

java

2 Votes

[SOLVED]: Returning Optionals in Java

5th Jul 2019, 10:32 PM

jurise mboumene

java optional practical return

15 Votes

- double: for floating-point or real numbers with optional decimal points and fractional parts in fixed or scientific notations,

15th Nov 2020, 7:41 AM

Chris Ng

java

1 Vote

Is it optional or required to separate the operator from the value with a space? .___.

25th May 2019, 8:20 AM

Daniel Svobodin

javascript operators

1 Vote

what is the difference between using the optional and creating normal variable without assigning any value?

29th Aug 2017, 12:55 PM

Yuko

constants let optionals swift var variable variables

1 Vote

Is computer sub are hard in class 11th. I opted computer as optional subject but friend are saying that it is not wise decisions

7th Oct 2016, 1:00 AM

مصطفى دويدار

dilemma

11 Votes

8 Answers

7th May 2017, 1:58 AM

💞ⓢⓦⓐⓣⓘ💞

Why does this code in the course return 36 and 81?

arguments c#optional

0 Votes

How does exception handling in Python differ from Java? Also, list the optional clauses for a “try-except” block in Python?

16th Nov 2021, 3:23 PM

Miron Ohner

python

-2 Votes

1st May 2020, 2:30 PM

Humayun Ali Khan

problem void bool

bool c#optional void

0 Votes

Ruby method - How Fill the blanks to create a method that takes optional parameters and outputs the squares of its parameters:

6th Dec 2020, 6:30 PM

Jose Perez

method optional parameters ruby

2 Votes

Is one of the questions broken?

11th May 2020, 8:54 PM

Андрей Рыбаков

arguments c#methods optional

1 Vote

how did the. Console.WriteLine(Pow(3, 4)) is 81 ???

13th Feb 2020, 8:09 PM

Jett Macias

&arguments methods named optional

0 Votes

why this program does not work? it should eliminate all the letters from the word(the string is a word; no spaces) excluding <a e i o u m>. for example : input: optional output: oioal

4th Aug 2020, 5:32 AM

Harits Anugrah Fajar Abdilah

c++

0 Votes