you’re comparing string and char type replace where r1[4] == “I” / where r1[4] == “O” with where r1[4] == ‘I’ / where r1[4] == ‘O’ 3 solved LINQ Operator ‘==’ cannot be applied to operands of type ‘char’ and ‘string’
ex.message.Contains(“Cannot open server”) && ex.message.Contains(“requested by the login”) solved How can I check if a string contains two other strings [closed]
It is normal for the compiler to generate an application! What is surprising is the location for the executable, it should have been generated in the parent directory: C:\TDM-GCC-64\> gcc Chess/chess.c Chess/init.c -o chess The explanation is interesting: You are using the Windows operating system, where the filenames are case insensitive. You instructed gcc to … Read more
<html> <body> <script> Array.prototype.randomElement = function () { return this[Math.floor(Math.random() * this.length)] } var list1 = [ “1”, “2”, “3”, “4”, “5”, “6”, “7”, “8”, “9”]; var list2 = [ “a”, “b”, “c”, “d”, “e”, “f”, “g”, “h”, “i”]; var list3 = [ “car”, “horse”, “gym”, “fair”, “boat”]; function myFunction() { document.getElementById(“demo”).innerHTML = list1.randomElement() + … Read more
I’m sure the difference is negligible, if there is any. If the difference is important to you, you should probably use a faster (likely compiled) language. You would do better optimizing more intensive things, like databases first (and writing clean code, as @Tim stated). solved Micro-optimizations: if($var){ … } vs if($var): … endif [closed]
You are clearly not doing what you say you are doing: >>> x = ‘8’ >>> y = ‘7’ >>> x+y ’87’ >>> x = int(x) >>> y = int(y) >>> x+y 15 Use + on strings and you get concatenation. Use + on integers and you get addition. If you are getting concatenation then … Read more
XDocument xdoc = XDocument.Load(“file.xml”)); var elm = from element in xdoc.Descendants(“element”) select new { attribute = element.Attribute(“attribute”).Value, }; 2 solved How do I read the contents of an XML element using C#? [duplicate]
You can use a regex range generator, such as http://gamon.webfactional.com/regexnumericrangegenerator/ I think this regular expression will do it: /^-?([0-9]|[1-8][0-9]|9[0-9]|100)$/ 1 solved Regex number between [closed]
check this and please don’t add pseudocode case “%”: textBox_Result.Text = (Double.Parse(textBox_Result.Text) * resultValue / 100.0).ToString(); 2 solved Switch statement in a C# calculator
I have to check if this exercise is correct It is not. if (((x < y) && (y < z)) && (y != 3)) printf(“%f < %d < %d \n”, x, y, z); Is correct, assuming float x and int y, z. <> in some languages means “does not equal”. But in c, the operator … Read more
You can try, but if the assignment succeeds it will not store the entirety of your original number, because representing it with accuracy requires more than 16 bits. The highest order bit in a 16 bit integer is the 215 place. Two to the fifteenth power is 32768. Setting your 16 bits to all ones … Read more
inp = [[0,1,2,3,4,5], [0,1,2,3,4,5], [0,1,2,3,4,5]] # out = [0****0, *1**1*, **22**] out = [] # here we create a list for finale output, now it’s empty count = 0 #this variable count we use for knowing what is the index iterable element for i in inp: # ordinary for loop, we eterate inp. on first … Read more
Include executes all of the code inside the file right away, and performs exactly as if you were copy-and-pasting the files into the document. This is different from how C or other languages handle #include statements. Pretend you are copy and pasting your code from those 3 files into one file, in that order… would … Read more
Below is sample code for enable textbox on selectbox option select. Please do required changes. <script type=”text/javascript”> function showtextbox() { var x=document.getElementById(“intext”). x.disabled=false; } </script> </head> <body> <form> <select onChange=”showtextbox()””> <option >one</option> <option>two</option> </select> <input type=”text” id=”intext” name=”intext” disabled=’disabled’> </form> </body> </html> Use your php code to connect and insert data in database. 2 solved … Read more
Check the MySQL slow query log to identify which query(ies) are causing the delay, then run EXPLAIN on them to see which (if any) indexes are being used. If you see that indexes are not being used, consider adding indexes to relevant columns. Such columns would be those used in WHERE and JOIN clauses. For … Read more