Tutorial by Examples: g

To use standard location services while the application is in the background you need first turn on Background Modes in the Capabilities tab of the Target settings, and select Location updates. Or, add it directly to the Info.plist. <key>NSLocationAlwaysUsageDescription</key> <st...

//myLogger.js export default { install(Vue, options) { function log(type, title, text) { console.log(`[${type}] ${title} - ${text}`); } Vue.prototype.$log = { error(title, text) { log('danger', title, text) }, success(title, text) { log('success', ti...

This is a unit test of a component that has Store as a dependency. Here, we are able to use a store with the default "initial state" while preventing it from actually dispatching actions when store.dispatch() is called. import {TestBed, async} from '@angular/core/testing'; import {AppCom...

//By range address worksheet.Cells["A1:B5"].Merge = true; //By indexes worksheet.Cells[1,1,5,2].Merge = true;

$Args Contains an array of the undeclared parameters and/or parameter values that are passed to a function, script, or script block. When you create a function, you can declare the parameters by using the param keyword or by adding a comma-separated list of parameters in parentheses after the...

$FirstName = 'Bob' Export-ModuleMember -Variable FirstName To export a variable from a module, you use the Export-ModuleMember command, with the -Variable parameter. Remember, however, that if the variable is also not explicitly exported in the module manifest (.psd1) file, then the variable wil...

Rather than defining all of your functions in a single .psm1 PowerShell script module file, you might want to break apart your function into individual files. You can then dot-source these files from your script module file, which in essence, treats them as if they were part of the .psm1 file itself...

In order to install an extension as a normal add-on into Release or Beta versions of Firefox greater than, or equal to, version 48, the extension must be signed by Mozilla. An extension is signed by submitting it to AMO. Once it is signed, the extension can be installed on any version of Firefox whi...

Add-ons can be installed as: Normal add-ons, which are installed until uninstalled Temporary Add-ons (extensions only): are only installed until Firefox is restarted, or can manually uninstalled earlier. Using jpm run (Add-on SDK only): Automatically runs Firefox using a temporary profile with ...

Create separate files for header and footer(as they are common for all the pages and it does not make sense to make them a part of a single page) Keep common elements(Like Search/Back/Next etc) in separate file(The idea is to remove any kind of duplication and keeping the segregation logical) Fo...

//Add a List validation to the C column var val3 = worksheet.DataValidations.AddIntegerValidation("E:E"); //For Integer Validation, you have to set error message to true val3.ShowErrorMessage = true; val3.Error = "The value must be an integer between 0 and 10"; //Minimum a...

//Add a TextLength Validation to column G var val5 = worksheet.DataValidations.AddTextLengthValidation("G:G"); //For TextLenght Validation, you have to set error message to true val5.ShowErrorMessage = true; //Minimum allowed text lenght val5.Formula.Value = 3; //Maximum allowed te...

For Getting updated or to do something before app goes live to user you can use below method. AppDidFinishLaunching - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Write your code before app launch return YES; } While ...

There are cases when you need to change Display Name of column in a list view e.g. Column Name showing in the view is "IsApprovalNeeded" and you want to appear as "Is Approval Needed?". You can, of course change the display name of a column by changing the column title in list ...

Typically, some files from the Web Application should not be overwritten when performing the deployment (e.g. web.config). This can be accomplished by: 1) Excluding from output - which means setting Build action to None. This is the easiest way, but it might not work for some particular files or fo...

PowerShell Workflows are inherently equipped with the ability to run as a background job. To call a workflow as a PowerShell background job, use the -AsJob parameter when invoking the workflow. workflow DoSomeWork { Get-Process -ComputerName server01 Get-Process -ComputerName server02 Get-...

Let's say there is a file we would like to execute, a bash script named add.sh, for example. Typing ./add.sh however, yields a permission error. Getting the permissions is a simple process. To determine the permissions a file has, type: ls -l filename, or, in our case, ls -l ./add.sh This prints ...

type ProjectIdType = ProjectId String getProject : ProjectIdType -> Cmd Msg getProject (ProjectId id) = Http.get <| "/projects/" ++ id

Occasionally we see StackOverflow Java questions (and C or C++ questions) that ask what something like this: i += a[i++] + b[i--]; evaluates to ... for some known initial states of i, a and b. Generally speaking: for Java the answer is always specified1, but non-obvious, and often difficult ...

Sometimes one would like to pass names of columns from a data frame to a function. They may be provided as strings and used in a function using [[. Let's take a look at the following example, which prints to R console basic stats of selected variables: basic.stats <- function(dset, vars){ f...