If by group by you mean adding values with same keys together you could try: let a = [‘A’, ‘B’, ‘C’, ‘D’, ‘E’, ‘F’, ‘G’, ‘A’, ‘F’, ‘C’, ‘A’, ‘E’]; let b = [‘5’, ‘7’, ‘4’, ‘3’, ‘8’, ‘1’, ‘9’, ‘1’, ‘5’, ‘4’, ‘2’, ’10’]; const temp = {}; a.forEach((value, index) => { temp.hasOwnProperty(value) ? … Read more
let data : [Int] = [1,2,4,5,6,7,8,4,23,54,100] let convertedData = data.map { Double($0)/100} Output: [0.01, 0.02, 0.04, 0.05, 0.06, 0.07, 0.08, 0.04, 0.23, 0.54, 1.0] 5 solved How to convert Int of Array values to Double using Swift [closed]
After typing the second number you press enter, right? %c in scanf accepts the first character it finds, so it returns the line break character corresponding to you pressing enter. An easy fix is to add a space character before %c. It makes scanf skip any whitespace. scanf(” %c”,&op); From the scanf documentation (http://www.cplusplus.com/reference/cstdio/scanf/): Whitespace … Read more
Start by Wire Framing it on Pen and paper, or a whiteboard if available. After that you’ll wont have any structures problems anymore. You can put out a layout that gives you some idea how the project will look and it will catch up a lot of early development/design problems, you then do the HTML … Read more
If there is no layout folder, you should create one and then create the xml file inside that(You would need to inflate that xml through your java code). If you already have a xml file and it’s not showing because of some reason then you need to check whether you have selected “Android” or not. … Read more
Operator precedence. Bitwise operations have higher precedence than equality comparison operator, so your bitwise operation is being computed as: print (year%4 == (0 & (year%100==0 or year%400==0))) 0 solved Difference between & and and in python [duplicate]
Yes, yet another .htaccess answer 😉 Options +FollowSymLinks -MultiViews RewriteEngine On RewriteBase / # Internally forward /x/10 to /index.php?x=10 RewriteRule ^x/(.*)/?$ index.php?x=$1 [L,QSA,NC] This will redirect: http://yourdomain.com/x/10 Internally to: http://yourdomain.com/index.php?x=10 So on the user does not see that on the browser. As for the link to learn about it, I found this a very good … Read more
$(‘yourSelector’).fadeToggle(yourDuration,function() { functionstoExecute}); From jQuery Doc .fadeToggle( [duration ] [, easing ] [, complete ] ) duration (default: 400) Type: Number or String A string or number determining how long the animation will run. 2 solved FadeToggle fade duration [closed]
As the error says, an abstract class cannot be instantiated, i.e., we cannot precede it with the word new, unless you also add the class body and implement any abstract methods. Alternately, you can create a class that extends Handler, and again make sure to add all of the abstract methods. new Handler() { @Override … Read more
HTML: <h1>{ Hello World }</h1> CSS h1 { display:inline-block; width:400px; height:150px; text-align:center; background:url(“http://placehold.it/400×200”) 0 0 no-repeat; padding-top:50px; margin:0; } JSFiddle solved How to put a text heading [closed]
Following is the program #include<stdio.h> main() { //float f = 233.1234; float f; float s; int x; int unit = 0; printf(“Enter the decimal number \n”); scanf(“%f”,&f); printf(“Entered the decimal number =%f\n”,f); s = f; while((int)s % 10) { s = s*10; } x = (int) s/10; printf(“x=%d,s=%f \n”,x,s); while(x % 10) { unit = … Read more
There is an r missing public void actionPerfomed(ActionEvent e) ^^^ public void actionPerformed(ActionEvent e) solved Method is not abstract and does not override method in Interface error
I found the answer. You need to define the foreign_key for the table so you can map it back. belongs_to :addresses, foreign_key: ‘state_abreviation’ 3 solved ActiveRecord joining nested associations on non default values
I don’t quite see the point of another file under the same project just to print powers of three, but that’s possibly your homework. Anyway, I think the whole point is to see how to include a file, so I also isolated the power function in another file. power_calculator.c will accept two parameters, {number} and … Read more
You can user Eloquent Builder sum() function. $sum = Sale::select( DB::raw(‘commissioned_total as total – commission’) ) ->sum(‘commissioned_total’); Or you can user Laravel Collection sum() function. $sum = Sale::all()->sum(function($sale) { return $sale->total – $sale->commission; }); You can enhance this method more, Define this commissionedTotal() function on Sale model, and use sum function as Higher Order Message. … Read more