[Solved] Why are constants used instead of variables?

[ad_1] A variable, as the name implies, varies over time. Variables mostly allocate memory. In your code, when you declare that a value will not change, the compiler can do a series of optimizations (no space is allocated for constants on stack) and this is the foremost advantage of Constants. Update You may ask why … Read more

[Solved] Confused about go syntax [duplicate]

[ad_1] This doesn’t do anything at runtime, but unless the *selectQuery type satisfies the interface QueryAppender, compilation will fail. It’s a kind of static assertion. 0 [ad_2] solved Confused about go syntax [duplicate]

[Solved] Removing Tags from a file parsed in C

[ad_1] #include <stdio.h> #include <stdlib.h> #include <string.h> char *getfield(char **sp){ char *left; //point to < char *right;//point to > if((left = strchr(*sp, ‘<‘)) == NULL) return NULL; if((right = strchr(left, ‘>’)) == NULL) return NULL; size_t len = right – left;//if len == 1, tag is nothing(<>) char *tag = malloc(len); memcpy(tag, left + 1, … Read more

[Solved] Addition function in Python is not working as expected

[ad_1] You don’t need the functions nor the sum or multiply variables, just put the operation in str.format(), and you were missing the last position. # def addition(num1,num2): # return num1+num2 # def multiplication(num1,num2): # return num1*num2 print(“1.addition”) print(“2.multiplication”) choice = int(input(“Enter Choice 1/2”)) num1 = float(input(“Enter First Number:”)) num2 = float(input(“Enter Second Number:”)) # … Read more

[Solved] Parts of string in regex

[ad_1] This should get you started: var myUrl = “wmq://aster-C1.it.google.net@EO_B2:1427/QM.0021?queue=SOMEQueue?”; var myRegex = new Regex(@”wmq://(.*?)@(.*?)\?queue=(.*?)\?”); var myMatches = myRegex.Match(myUrl); Debug.Print(myMatches.Groups[1].Value); Debug.Print(myMatches.Groups[2].Value); Debug.Print(myMatches.Groups[3].Value); But you may need to change it a bit for variations in the url. There are proper tutorials on the web to explain Regex, but here is some quick info: @ before a … Read more

[Solved] How to disable / enable checkbox base on select (option) value [closed]

[ad_1] All you have to do is listen to the select and react when it changes. // Listen to the change of the <select> element $(“#typeofworkday”).on(“change”, function() { // Check the option value for “ferie” and disable the checkbox if ($(this).val() === “ferie”) { $(“#check1”).attr(“disabled”, “disabled”); // For all other options, enable the checkbox } … Read more