Introduction When working with data structures, it is often necessary to access an array of pointers to structures. This can be a tricky task, as it requires knowledge of both the array and the structure. In this article, we will discuss how to access an array of pointers to structures, as well as some tips … Read more
Introduction This question is related to the use of vectors in programming. A vector is a data structure that stores a collection of elements, and it is often used in programming languages such as C++ and Java. The question is whether it is possible to access a location in a vector which has not been … Read more
The issue here is that you’re not saving a reference to the original object… you’re overwriting your object variable in the for-loop and then returning the final value of that variable. Perhaps you should add a line like: var current = object; and then use current instead of object in the rest of your function. … Read more
How can I tell if one of my values is/are null? One way is to learn to read the stack trace that you are getting. (We could maybe help you with that, if you showed it to us.) Another way is to test the value to see if it is null. Is there a test? … Read more
First, let’s elaborate rules: One part “John” -> “John” (do nothing) Two parts “John Smith” -> “Smith, John” (last, first) Three+ parts “John Peter Jack Smith” -> “Smith, John P. J.” (last, first, other in order as single letters) Having these rules we can implement a simple reordering: private static String ReOrderNamesParts(string name) { if … Read more
It prints “Hello” because operator << has an overload for const char* (which is what you’re passing if you pass x) that prints out a single char and moves to the next char until a NUL-character is found. “Hello” has a compiled-added NUL-character at the end, so your string is actually “Hello\0”. To get the … Read more
This should do the trick: <li><?php echo $book . ” (” . $isbn . “)”; ?></li> 0 solved How to concatenate a space in php
You can use Array.prototype.map() function. var o = {“tuple”:[{“old”:{“MST_VAS_TYPE”:{“MST_VAS_TYPE_ID”:”VAS_1000″,”VAS_TYPE_NAME”:”AMC”,”VAS_TYPE_DESC”:”Annual Maintenance Contract”,”CREATED_ON”:null,”CREATED_BY”:null,”MODIFIED_ON”:null,”MODIFIED_BY”:null,”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”}},”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”},{“old”:{“MST_VAS_TYPE”:{“MST_VAS_TYPE_ID”:”VAS_1001″,”VAS_TYPE_NAME”:”EW”,”VAS_TYPE_DESC”:”Extended Warranty”,”CREATED_ON”:null,”CREATED_BY”:null,”MODIFIED_ON”:null,”MODIFIED_BY”:null,”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”}},”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”},{“old”:{“MST_VAS_TYPE”:{“MST_VAS_TYPE_ID”:”VAS_1002″,”VAS_TYPE_NAME”:”COUPON”,”VAS_TYPE_DESC”:”Recall”,”CREATED_ON”:null,”CREATED_BY”:null,”MODIFIED_ON”:null,”MODIFIED_BY”:null,”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”}},”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”}],”@xmlns:SOAP”:”http://schemas.xmlsoap.org/soap/envelope/”,”@xmlns”:”http://services.vw.com/lpms/1.0/wsapp”}; a= o.tuple.map(function(val){ var inner = val[‘old’][‘MST_VAS_TYPE’]; var ret = {}; ret[inner[“MST_VAS_TYPE_ID”]] = inner[‘VAS_TYPE_NAME’]; return ret; }) sel = document.createElement(“select”); document.body.appendChild(sel); for (var index in a) { obj = a[index]; for (var prop in obj){ option = document.createElement(“option”); option.text = obj[prop]; option.value = prop; … Read more
int column=1; //in your example int row=1;//in your example //for rows for(int i = 0; i<numberofrows; i++) { array[i][column]=0; } //for columns for(int i = 0; i<numberofcolumns; i++) { array[row][i]=0; } 1 solved How to zero specific column of 2d array [closed]
You can reduce your array to produce the desired result like this let firstArray = [[0,2], [1,3], [0,5], [2,8], [1,4], [4,2]]; const secondArray = firstArray.reduce((acc, [ idx, val ]) => { acc[idx] = acc[idx] ?? [] // initialise to an empty array acc[idx].push(val) // add the value return acc }, []).filter(Boolean) // filter skipped indices … Read more
$array = array(); $current =& $array; $keys = $array(‘one’, ‘two’, ‘three’); $value=”text”; foreach (array_slice($keys, 0, -1) as $k) { $current[$k] = array(); $current = & $current[$k]; } $current[$keys[count($keys)-1]] = $value; Using a reference for $current allows it modify the nested arrays in place. 1 solved Multiple array keys from array
You can use array_diff_assoc() to do this, it works out the difference between the two arrays, with a key check to verify that the keys are the same as well: $a = [‘id’, ‘name’, ‘age’, ‘gender’]; $b = [‘id’, ‘age’, ‘name’, ‘gender’]; $expected = array_diff_assoc($a, $b); $actual = array_diff_assoc($b, $a); echo ‘Expected = ‘, implode(‘, … Read more
You are getting blanks because you are not actually removing any characters from your array, you are just replacing them will nulls, and then not ignoring the nulls when outputting the contents of the array. Instead of doing the removal manually, consider using the standard std::remove_if() algorithm, which can move any vowels to the end … Read more
First of all a few things to help you with your code: Try following atleast a few conventions (tab your code in for example) In your if statements and foor loops you are handeling way too many thing. If the first statement didn’t catch that the value is under 60, there is no need to … Read more
I would use join to find the matches: Dictionary<int, string> dict = new Dictionary<int, string> { {1, “A”}, {2, “B”}, {3, “c”}, {4, “D”}, {5, “E”}, }; string[] values = new [] {“A”,”D”,”E”}; var query = from kvp in dict join s in values on kvp.Value equals s select new {kvp.Key, Found = true}; You … Read more