Here ya go, use std::string::find: // Notice the double quotes std::string::size_type position = my_string.find(“34”); bool found = ((position != std::string::npos) && (position > 0) && (my_string[position – 1] == ‘6’)); The find method returns the position of substring, or std::string::npos if it is not found. The position must be greater than 0, because of the … Read more
If you want $x to be a boolean indicating the truthiness of $y || $z (i.e. if either $y or $z is truthy. Then what you posted: $x = $y || $z will work. If you want $x to have the same value as the first non false variable you could do a ternary: $x … Read more
The data is being fetched asynchronously and the print statement is getting executed before the response is received. print the data after you assign value to self.jumlahStok solved Global Variable Not Update ( Swift ) [closed]
First, move the non-date columns in to the index, then use replace and reset_index: df = df.set_index(‘CashFlows’) df = df.rename(columns=lambda x: ‘year_’+str(x.year)) solved How to change column names from numbers to names [closed]
If the number input isn’t one that you check (1 to 5) then you hit: else if (a == 1) { std::cout << “\n”; return 1; } which will enter the if (because a is 1), print a new line and return from main ending your run. solved Me not understanding do while loops [closed]
I’ve copied the data from your post above so you can skip the variable assignment library(“tidyverse”) df <- read.table(file = “clipboard”, header = T) %>% as_tibble() You need to modify your data structure slightly before you pass it to ggplot. Get each of your test names into a single variable with tidyr::gather. Then pipe to … Read more
You can make your query like this for getting same result that you want – SELECT SUM(Total) as total,Name from table_name group by Name; 2 solved How to output only 1 if data same [closed]
This is how you can proceed: <script type=”text/javascript”> var timeleft = 30; var downloadTimer = setInterval(function(){ timeleft–; document.getElementById(“countdowntimer”).textContent = “:” + ((timeleft >= 10) ? timeleft : (“0” + timeleft)); if(timeleft <= 0){ clearInterval(downloadTimer); window.location.replace(“next_slide.html”); } },1000); </script> 0 solved Double digit 30 seconds countdown
You need to append to code each time through the loop, not assign to it. You shouldn’t reinitialize it in the loop, and the return statement should be after the loop. And if you want a 2-dimensional list, you need to wrap the concatenations in another list. However, the loop can be replaced completely with … Read more
Your last print says to print the character pointed to by str as a decimal, which is exactly what it did (for a memory location you just deallocated, making this undefined behavior). 3 solved Why when I print it appears 80 for *str in decimal (letter P in ASCII)?
That is so because , global scope in browser and nodejs are different. When you declare a var in browser , variable is attached to global scope and can be accessed by this operator. Where as it is not the case with nodejs. So if you copy paste and run this code in browser it … Read more
The tag is unrecognized in this browser. If you meant to render a React component, start its name with an uppercase letter [closed] solved The tag is unrecognized in this browser. If you meant to render a React component, start its name with an uppercase letter [closed]
Don’t not read the docs: retrieve_student_responses Students are identified by the unique ID or email address of the user, as returned by the Google Admin SDK. So there’s clearly no guarantee it will return the email.. If you read the docs you can find how to properly retrieve the email for a student id: retrieve_a_users_profile … Read more
You can try this- const data = [ “2-inch leg extension”, “2′ x 8′ Overhead Garage Storage Rack”, “4 Drawer Base Cabinet 16-1/2\”W x 35\”H x 22-1/2\”D”, “24\” Long Tool Bar w/ Hooks Accessory” ]; const res = data.map(str => str.replace(/[^a-z\d\-_]/ig, ”)); console.log(res); If you need any prefix with the ID then add it like- … Read more
Try this function function mapData(data) { let result = []; data.forEach(element => { let t = element.time + 9200; let substr = t.toString().substr(0, 8); if(!result[substr]) result[substr] = 0; result[substr] += element.count; }); let returnResult = []; result.forEach((element, index) => returnResult.push({ time: index, count: element }) ); return returnResult; } 2 solved Summarize data in array … Read more