Q&amp;A Discussions

How to give null value to a variable?

15th Jun 2020, 5:38 AM

Dipesh Das

python

0 Votes

can someone tell me what the hell is NULL

9th Apr 2020, 12:41 PM

madhan mallisetty

c++pointers

0 Votes

Why this code output was null character in encrypted & decrypted message place?

10th Oct 2016, 6:33 AM

Seinsora x

c++character null operations string

13 Votes

Pls why do I get null as the output on the console?

24th Jul 2020, 7:58 AM

Azhagesanヾ(✿)

javascript

3 Votes

8 Answers

30th Sep 2021, 12:31 AM

Okafor Okwuchukwu Charisma

Uncaught TypeError: Cannot read properties of null (reading 'addEventListener')

html javascript

1 Vote

Why mentioning NOT NULL while applying PRIMARY KEY constraint?

10th Feb 2022, 2:32 AM

MANIKANDAN S

tables

1 Vote

Uncaught TypeError: Cannot read property 'style' of null Line 33

23rd Jun 2019, 3:45 PM

Yasser AKBBACH

animation javascript js

2 Votes

Uncaught TypeError: Cannot set property 'onmousemove' of null

14th Nov 2020, 4:34 PM

Aravind-R-C 06

error javascript js

0 Votes

What is the difference between null and a new empty object?

27th Sep 2020, 11:34 AM

Rishbabh Sharma

emptyobject js null

3 Votes

8 Answers

27th May 2017, 4:22 AM

Astghik Saghyan

Hi! What's the difference between null and 0 and""

0 Votes

why it's showing cannot set textContent = null

9th May 2020, 9:58 PM

A.M

error javascript textcontent

0 Votes

will someone could explain more about null pointer for me?

18th Jan 2018, 3:31 PM

ANSHIF BABU AS

c++pointers

1 Vote

How do I check for null values in JavaScript?

24th Jul 2016, 6:56 AM

Yousef Sayadi

javascript

1 Vote

Null pointer exception- but dont know where is my mistake

24th Jan 2017, 3:49 AM

Didi Georgel Danaila

java

0 Votes

What is the difference between null and empty?

7th Apr 2023, 1:16 PM

Drelda

empty java keyword null

0 Votes

Getting Uncaught TypeError: Cannot set property of 'onfocus' of null line: 11

7th Mar 2019, 6:47 AM

Tarika

html5 javascript

0 Votes

8 Answers

19th Aug 2020, 8:57 AM

Pawan

How is this possible that null and undefined is not equal?

javascript node.js

0 Votes

Why does my method return null when I set max to null ? It should be initialized within the conditional statement

28th Apr 2023, 6:00 AM

Farhad Rahmani

java

1 Vote

Uncaught TypeError: Cannot read property 'value' of null Line: 1

28th Nov 2020, 12:33 AM

Adrien Linares

html input javascript

0 Votes

How to insert blank value not NULL using mysql query

31st Dec 2016, 3:20 PM

ONLY JS PLEASE!

insert into

2 Votes

Java multidimensional array with null value of second [ ]

3rd Dec 2019, 3:08 PM

Narendra Kumar

arrays jaggedarray java

1 Vote

Why Scanner followed by a bufferedReader gives a Null pointer Exception ?

26th Apr 2020, 7:54 PM

Sheraz Tariq

bufferedreader java scanner

2 Votes

How can I catch Null Referencee Pointer exception

30th Sep 2020, 3:17 PM

Mr.Curious

c++

1 Vote

Can I consider s as null string? S==null will be true?

26th Dec 2016, 6:23 AM

Mattis BETOURNE Clara HORVENO

java null strings

2 Votes

how to validate Null Byte Injection in php?

23rd Jan 2020, 4:01 PM

Hichem GOUIA

php security

0 Votes

Iwant to delete null list items in c#

21st May 2017, 5:35 PM

Hein Htet

c#delete list text

0 Votes

May you explain me new, delete, NULL in this code, please?

12th Apr 2017, 4:52 PM

prg_Mohamad

c++delete dynamic dynamicmemory memory null

2 Votes

How to fix error of properties of null (reading, 'width')

6th Dec 2020, 1:17 PM

lifeismyschool

javascript jquery properties

0 Votes

What is the result of converting Null to boolean in JavaScript.

22nd Jul 2023, 2:21 PM

Indiphile Menziwa

javascript

0 Votes

Why is the output null instead of the div element?

30th Jan 2021, 9:05 AM

PRINCE TAWIAH

html javascript

0 Votes

What is the output of this code? a) error. b) 12. c) null

13th Jan 2022, 2:46 PM

Logos

java

3 Votes

9 Answers

30th Dec 2017, 1:36 AM

Gustavo

how change all of null fiulds of the table to zero?

sql

2 Votes

Can someone help me with SQL project... I'm stucked on it over 3weeks

9th Nov 2017, 10:45 AM

Sepehr Jafari

0 Votes

If i directly compare two strings on printf it produce only null value..why.?

15th Jan 2021, 2:49 PM

NWACHUKWU STEPHENMARY CHUKWUKWE

2 Votes

What is the difference between character array with and without null terminating character ?

22nd Aug 2018, 4:32 AM

M.MANIVANNAN

arrays c character null strings

1 Vote

9 Answers

25th May 2021, 9:19 AM

Krishna Kumar

What is the difference between null and undefined in JavaScript ?

javascript null undefined

2 Votes

Why the strrev[i] = '\0' null in the end of the code?

17th Jul 2017, 3:22 AM

kashish

arrays,c,strings

0 Votes

Doing somethig else and returning if null in one expression

1st Feb 2020, 4:40 PM

Veli-Matti

kotlin smartcast

0 Votes

What is the use of using null function.... In sql?

13th Jul 2019, 9:27 PM

Chriptus13

sql where

0 Votes

Null is an character then why not if part is evaluated here??

22nd Aug 2017, 2:22 PM

Selva Raj

c code

2 Votes

What's wrong with my code?why is it showing "cannot set properties of null ?

15th Nov 2019, 10:50 AM

Preity

css html5 javascript js pizza website

0 Votes

6 Answers

29th Oct 2023, 5:13 AM

Akanksha Raundal

JS help needed. Can not read value of null

beginner javascript

0 Votes

What is the use of a Null Character("\0"). Is it used in all object oriented programming ?

17th Dec 2018, 5:37 AM

Webnell

c++java programming

15 Votes

7 Answers

2nd Dec 2018, 5:07 PM

$oftware Geek

Does a unique constraint allows a null value to be inserted once? Or the Check constraint

1 Vote

Is it good to learn a framework before knowing the basics

26th Jun 2019, 7:31 PM

mvtin

0 Votes

Error de java jsf #{controlador.Persona.nombre}'':Target Unreachable, identifier 'controlador' resolved to null

31st Jan 2020, 2:42 PM

gilberto Gilbert

java jsf

1 Vote

JS - null (what does it stand for exactly in this case?)

2nd Jun 2020, 8:11 PM

Arnau Ribas López

concat function-arguments functions javascript js null

2 Votes

Can anyone tell me this programme is right or not? If it is right than y it's not running in my programming hub compiler?

3rd Oct 2021, 5:27 PM

Aykut AKSAKAL

0 Votes

Can anyone solve Oracle SQL exception: ora-00014 cannot insert null into{"system"..... }

29th Apr 2021, 7:36 PM

Abhay Verma

java sql

1 Vote