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    Home Unlabelled What is code injection and how does it work? Ask Programming

    What is code injection and how does it work? Ask Programming

    March 23, 2019

    What is code injection and how does it work? Ask Programming

    What is code injection and how does it work?

    Posted: 23 Mar 2019 05:55 PM PDT

    I am quite new to coding in general and am just making a simple ios app on Xcode using swift. Getting a crash and Thread:1 Signal SIGBART.

    Posted: 23 Mar 2019 10:06 PM PDT

    I am making an app on Xcode and using the single view app version as it's all I have used so far. In the app there are multiple views and clicking on a button will progress to the next view. I want information from my first view such as an input that has been entered into my textfield to go to a label in my 4th view. The button btw goes to the second view. To do this I am using

    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

    let nvc = segue.destination as! ViewController

    let firstQuestionAnswerPageOne = nvc.firstQuestionVariable

    answerPageFirstQuestion.text = firstQuestionAnswerPageOne

    }

    ​

    So firstQuestionVariable is the text input of the textfield and I make a variable in my 4th view equal that. Then I make the label equal that variable. The only problem is that it does not transfer the data and if I click the button to go from 4th view to fifth my Xcode project crashes with Thread:1 Signal SIGBART and is highlighting

    let nvc = segue.destination as! ViewController

    ​

    line of code and in the console this error pops up...

    ​

    Could not cast value of type 'singleSelfApp.secondAnswerViewController' (0x1090d4670) to 'singleSelfApp.ViewController' (0x1090d4518).

    2019-03-24 13:54:12.082890+0900 singleSelfApp[12901:1931347] Could not cast value of type 'singleSelfApp.secondAnswerViewController' (0x1090d4670) to 'singleSelfApp.ViewController' (0x1090d4518).

    (lldb)

    ​

    So if anyone has any help or answers that would be greatly appreciated!!. Sorry if this is the wrong place to post this never really used reddit to ask questions.

    submitted by /u/4rni3
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    People program in multiple languages, do you find yourself google the syntax every time you switch to another language?

    Posted: 23 Mar 2019 01:07 AM PDT

    I only code in C and Python and I already have to google the syntax to print out something to the screen etc.

    submitted by /u/vitsensei
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    C# Query vs JS Query are there differences

    Posted: 23 Mar 2019 11:26 AM PDT

    Currently, working with Asp.Net MVC my question is if there are any security risks with making a Select query from an embedded script tag within the View over instead handling the query via the controller using C#?

    submitted by /u/mod_god
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    Auto synopsis bots/tech

    Posted: 23 Mar 2019 01:02 PM PDT

    Hey guys, can anyone point me in the right direction of technology that scans a listing and tries to shorten the information to a few small sentences? I don't even know what they(the technology) are called

    submitted by /u/odix
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    Question about Macs.

    Posted: 23 Mar 2019 05:06 AM PDT

    Recently, a friend of mine let me borrow his mid 2012 MacBook Pro for coding use. After a reinstall of the os-to Mojave-I'm getting significant slowdown. Im wondering if I can/should use a less recent version that won't cause the laptop to move like sludge. It's got 4 gb ram and 500 gb sata disk.

    I'd like to use swift, or possibly C# but I'm not sure if it's possible with how slow it's moving. Thanks for your help!

    submitted by /u/corpsestomp
    [link] [comments]

    Issues with getting FCFS Processing to automatically arrange in C

    Posted: 23 Mar 2019 09:24 AM PDT

    I am currently at the point where I can call and run the process through a method. I have one method where it asks for me to input the Burst and Arrival Times, before the next method runs where the FCFS processing takes place, before going through a third method that displays the results in the console. This works perfectly when entering the results in order, though when typed in any other order, the results are not rearranged and a different set of results are outputted.

    I have been told by a friend that I could try adding a Bubble Sort using two for loops underneath the input method code. But I am unsure how to implement this.

    Many thanks for reading :) 

    #include <stdio.h> int menuSelection (void); int waitTime [10]; int noProc = 5; int arrivalTime [10] = {0, 1, 2, 3, 5}; int burstTime [10] = {4, 3, 1, 2, 5}; int turnaroundTime [10]; int total = 0; float avgWaitTime, avgTurnaroundTime; void fcfs() { waitTime [0] = 0; avgTurnaroundTime = turnaroundTime [0] = burstTime [0]; int burstTotalTime = burstTime [0]; int i; for (i = 1; i < noProc; i++) { waitTime [i] = burstTotalTime - arrivalTime [i]; burstTotalTime += burstTime [i]; avgWaitTime += waitTime [i]; turnaroundTime [i] = waitTime [i] + burstTime [i]; avgTurnaroundTime += turnaroundTime [i]; } avgTurnaroundTime /= noProc; avgWaitTime /= noProc; } void inputValues() { printf ("\nPlease enter the amount of Processes: "); scanf ("%d", &noProc); int i; for (i = 0; i < noProc; i++) { printf ("Enter Burst Time of Process %d:", i + 1); scanf ("%d", &burstTime [i]); printf ("Enter Arrival Time of Process %d:", i + 1); scanf ("%d", &arrivalTime [i]); } } void displayValues() { int i; printf ("AT\tBT\tTaT\tWT\n"); for (i = 0; i < noProc; i++) { printf ("%3d\t%3d\t%3d\t%3d\n", arrivalTime [i], burstTime [i], turnaroundTime [i], waitTime [i]); } printf ("Average Turnaround Time: %f\n Average Wait Time: %f", avgTurnaroundTime, avgWaitTime); } int menuSelection (void) { int selection = 0; do { printf ("=----------------="); printf ("\n1. FCFS"); printf ("\n2. SJF"); printf ("\n3. RR"); printf ("\n4. Quit"); printf ("\n=----------------="); printf ("\n"); scanf ("%d", &selection); } while ((selection < 1) || (selection > 4)); return selection; } int main() { int menuChoice; menuChoice = menuSelection(); printf ("You have picked No. %d\n", menuChoice); printf ("\n"); switch (menuChoice) { case 1: inputValues(); fcfs(); displayValues(); break; } return menuChoice; }

    ​

    submitted by /u/gorsas
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    Digital Marketing & Data science Or Digital Marketing & web development. which combination to become a successful online entrepreneur ?

    Posted: 23 Mar 2019 05:02 AM PDT

    Hello redditors

    ​

    I am currently studying for a Masters degree in MIS

    I'd like to ask which tech skills are more valuable for an aspiring online entrepreneur

    I did some research and I found data science very powerful , but confused if it's more valuable and suitable for my entrepreneurship aspirations or is it more corporate focused .

    ​

    Is there some intersection between digital marketing , data science & web development as a powerful combination for online business success & for online job opportunities . Are the skills of a Data Marketng Analyst the closest to this path ?

    ​

    What technical skills should I focus more on " in addition to sales and copywriting " , I am currently learning SQL & getting into data science .

    ​

    Thanks in advance for your contribution

    submitted by /u/Earnabdel
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