Sort an array of objects (JSON) using JavaScript

There is an array of objects with a string attribute called name and a number attribute called age.  arr = [ {name: "abba", age: 23}, {name: "lovely", age: 23}, {name: "vincent", age: 5}, {name: . . .

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Conversion from type 'DBNull' to type 'String' is not valid

I am getting this error on my VB.net program Conversion from type 'DBNull' to type 'String' is not valid The error occurs at the below line strResult= dtGrid.Rows(i).Item("RESULT") dtGrid is a dat . . .

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Remove encryption from excel protected with IRM

I have an excel workbook that is encrypted by someone else with Information rights management (IRM). Is it possible to remove the encryption from this file? If i click on File -> Info ->Protect . . .

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MongoDB create unique index: E11000 duplicate key error collection dup key:{:null}

I am trying to create a unique key on a collection. It fails with the error message: > db.users.createIndex({userid:1},{unique:true}) { "ok" : 0, "errmsg" : "E11000 duplicate key error collec . . .

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MongoDB migrations: Declaration of Jenssegers\Mongodb\Schema\Blueprint::primary() not compatible

I am using Laravel 5.3 with jenssegers mongodb package. I am getting this error when running php artisan migrate     [ErrorException]   Declaration of Jenssegers\Mongodb\Schema\Blue . . .

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Laravel Socialite Access Not Configured. Google+ API (truncated...) exception 'GuzzleHttp\Exception

Hi, I am setting up Socialite2.0 on Laravel 5.3. I registered FB and Google apps and configured services.php with credentials. Facebook login is working fine, but Google authentication fails at redi . . .

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How to refresh the contents of a div using AJAX and jQuery?

I want to refresh the content of a div periodically (eg: every 5s) . . .

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jQuery loop through unordered list and access inner text

Hi, I have span elements inside <li>, how can i access and change the text dynamically? <ul id="listA"> <li><span></span></li> <li><span></span&g . . .

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popover is not a function error

I have a form that use popovers.. and i have the following code inside document ready $(document).ready(function() { $('[data-toggle="popover"]').popover(); }); when the form is loaded i see t . . .

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Show new email notification in Outlook 2013

My outlook doesnt show any alert when a new mail comes. In the previous versions i  used to see a mail icon near to date time area in task bar and also hear a sound.  . . .

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SELECT 1 SQL statement

Whats the meaning of SELECT 1 SQL statement? I have come across this sql select * from category where exists ( select (1) from products where category.id = products.id ) . . .

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Ubuntu: Extract log within a period

How to get all the log entries in the last 2 hours? I am running apache on Ubuntu. . . .

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Raspberry pi - how to mount Windows shares?

I am trying to mount Windows share files(password protected) on Pi I am using sudo mount -t cifs -o username=yourusername,password=yourpassword //MyPC/share1 /mnt/myfolder This is not working. . . .

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MySQL: List all foreign keys in a table

How do i list all the foreign keys in a MySQL table?   . . .

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Drop table Mysql bypass foreign key constraint

How to get around foreign key constraint check while dropping tables? mysql> drop table users; ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails mysql> . . .

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