Author: Full Stack

Front end web development requires a solid understanding of many languages, and the scale of questions asked during the dev work could go past beyond.

Mastering Development

Converting array to 8-bit codes in c

Post author By Full Stack
Post date January 23, 2021
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I have an array of 200 elements. I want to divide this array into 25 parts and find the RMS values of these parts and print 0 if it is less than 20, 1 if it is greater. Example signal1[200] Output data[8]={0,1,0,0,1,0,1,1) I find code for RMS calculation #include <stdio.h> #include <math.h> double rms(double* v, […]

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callback?: (any) => void what this code mean?

Post author By Full Stack
Post date January 23, 2021
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i’m a newbie in javascript and angular, so i’m learning these. could anybody interpret below code snippet for me? public loadDataForPage(page: number, pageSize: number, callback?: (any) => void) { this._http.get(this._buildDataUrl(page, pageSize)) .subscribe((data: any) => { const startIndex = (page-1) * pageSize; this._updateData(data, startIndex); this._data.next(data); callback({data}); }); } i don’t know this part callback?: (any) => […]

Tags callback?: (any) => void) { this._http.get(this._buildDataUrl(page, i'm a newbie in javascript and angular, pageSize: number, pageSize)) .subscribe((data: any) => { const startIndex = (page-1) * pageSize; this._updateData(data, so i'm learning these. could anybody interpret below code snippet for me? public loadDataForPage(page: number, startIndex); this._data.next(data); callback({data}); }); } i don't know this part callback?: (any) => void and callback({dat

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How to create a user-defined function in Postgresql?

Post author By Full Stack
Post date January 23, 2021
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I have the following query in Postgres. I want to have a function where the user can define the value of record_year and record_month using the function call, dynamically without having to specify in the query statement. That way the same query can be reused for different user input values for record_year and record_month (in […]

Tags dynamically without having to specify in the query statement. That way the same query can be reused for different user input values for recor, I have the following query in Postgres. I want to have a function where the user can define the value of record_year and record_month using t, record_month);, select function_name(record_year, x.record_month, x.record_year, y.addr FROM x FULL OUTER JOIN y ON x.sid = y.sid WHERE x.record_time='23:50' and x.record_year='2020' and x.record_month='1' group by, y.addr; The function call could be something like

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Accessing elements in Counter() in a loop python

Post author By Full Stack
Post date January 23, 2021
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I have this: num_values = 3 lst = [1, 2, 3, 1, 2, 2, 2, 2, 2, 2] counters = Counter(lst) Counter({2: 7, 1: 2, 3: 1}) I need to do a for loop and access every value in my Counter. How do I do this? Example: for value in counters: scores = 0 if […]

Tags {1}; {2}, 1, 2, 2] counters = Counter(lst) Counter({2: 7, 3, 3: 1}) I need to do a for loop and access every value in my Counter. How do I do this? Example: for value in counters: scores = 0 if, I have this: num_values = 3 lst = [1

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SQL error – trigger/function may not see it

Post author By Full Stack
Post date January 23, 2021
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I was working on my project, here I got this error while inserting some values in a row: ERROR at line 1: ORA-04091: table SYSTEM.PRODUCTS is mutating, trigger/function may not see it ORA-06512: at "SYSTEM.PROD_TOTAL", line 2 ORA-04088: error during execution of trigger ‘SYSTEM.PROD_TOTAL’ This is my insert statement: insert into products values (1, 1001, […]

Tags (1001, 1, 1); Products table : create table Products ( ProdId number primary key, 20, 4, FinalTotal int, here I got this error while inserting some values in a row: ERROR at line 1: ORA-04091: table SYSTEM.PRODUCTS is mutating, I was working on my project, line 2 ORA-04088: error during execution of trigger 'SYSTEM.PROD_TOTAL' This is my insert statement: insert into products values (1, medical, PayCustId int references Customers ); I don't know why I am getting this error, PayDate date, PayOrdId int references orders, PayProdId int references Products, please help me in solving this issue..., ProdCustId int references Customers, ProdNum number not null unique, ProdOrdId int references Orders, ProdPrice int, ProdQuantity int, ProdStoreId int references Stores ); Trigger code: create trigger PROD_TOTAL after insert ON Products for each row begin update Payment, ProdTotal int, ProdType varchar2(15), trigger/function may not see it ORA-06512: at "SYSTEM.PROD_TOTAL"

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Algorithm crashing

int function(int A[], int n) { int i = 0; int sum= 0; int amount = 0; while (amount> 0) { if (A[i] > 0) { sum = sum + A[i]; amount++; } else { i++; } while (!(i < n)) { if (amount> 0) { return sum / amount; } else { return 0; […]

Tags but all the time im getting result 6422260. Can someone tell me how should I approach this? int n; cin >> n; int arr[n]; sran, Im trying to use this with this algorithm, int function(int A[], int n) { int i = 0; int sum= 0; int amount = 0; while (amount> 0) { if (A[i] > 0) { sum = s

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How to negate whole words in regex

Post author By Full Stack
Post date January 23, 2021
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I used regular expression a little bit already but now I’ve stumbled upon a situation, where I don’t really know how to do it, and all the online tutorials I read didn’t cover my situation. The problem reads quite easy to solve, and it is probably easy to solve, but I didn’t find a solution […]

Tags and all the online tutorials I read didn't cover my situation. The problem reads quite easy to solve, and it is probably easy to solve, at least not when I test it in regexstorm.net I use .NET., brackets are allowed, but I didn't find a solution yet. I need to parse a string, but I didn't find any working examples that negate whole words, case insensitive. For instance xxxx AND (yyyy or zzzz) and not qqqq Right now I'd like to find all the strings, followed by at least one letter/digit.) This would give me "not qqqq" in the above example. But, I used regular expression a little bit already but now I've stumbled upon a situation, if the user happens to write xxxx AND (yyyy or zzzz) and not not qqqq which is a valid string, OR and NOT, that have a NOT infront of it. For that I created this regex pattern "NOT\s+[\w]+" (The literal NOT followed by at least one whitespace, that is composed of short strings combined with the boolean operators AND, then my pattern would give me "not not" instead of "not qqqq". So I need a regex pattern that would give me "literal word NOT followed by wh, where I don't really know how to do it, whitespaces shouldn't matter

Mastering Development

Show how this field is used to solve the problem in the corresponding protocol

Post author By Full Stack
Post date January 23, 2021
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“Time to live” (TTL) is used by some of the protocols that you have studied in this lesson. Show how this field is used to solve the problem in the http protocol. Show how this field is used to solve the problem in the DNS protocol.

Tags “Time to live” (TTL) is used by some of the protocols that you have studied in this lesson. Show how this field is used to solve the problem

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I have column x in hh:mm format of datatype varchar in SQL Server and I want to perform sum on that ‘x’ column

Post author By Full Stack
Post date January 23, 2021
No Comments on I have column x in hh:mm format of datatype varchar in SQL Server and I want to perform sum on that ‘x’ column

I have column x in hh:mm format of datatype varchar in SQL Server and I want to perform sum on that x column. I created a user-defined function to convert total min into hh:mm format. Then I tried to perform sum to calculate total duration: sum(cast(new_totalmin AS Int)) also i want total of HH:mm exactly […]

Tags I have column x in hh:mm format of datatype varchar in SQL Server and I want to perform sum on that x column. I created a user-defined funct

Mastering Development

Get type parameter value from URL with livewire

Post author By Full Stack
Post date January 23, 2021
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I wanted to get the value of type from the url "example.com/user?type=agent" using livewire. I have tried using Input::get(‘type’) but is not working in livewire component class

Tags I wanted to get the value of type from the url "example.com/user?type=agent" using livewire. I have tried using Input::get('type') but is no