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JSON-stringify-Filter.html - JSON.stringify() Array Replacer
How to write a replacer array to filter values while the JSON.stringify() function is generating the JSON text string? If you call JSON.stringify() with an array as the replacer, the array elements will be used to filters to select object properties with keys match one of array elements. All other o...
2023-09-07, ∼3403🔥, 0💬

"fabric-ca-client enroll" Error - "Failed to insert"
Why am I getting the "Certificate signing failure: Failed to insert record into database: attempt to write a readonly database" error, when running the "fabric-ca-client enroll" command? If the Fabric CA Server is not able to update its database, you will get the "Certificate signing failure: Failed...
2019-09-27, ∼3397🔥, 0💬

Selecting an Existing Database in PHP
How To Select an Exiting Database in PHP? The first thing after you have created a connection object to the MySQL server is to select the database where your tables are locate, by using the mysql_select_db() function. If your MySQL server is offered by your Web hosting company, they will assign a da...
2016-10-20, ∼3391🔥, 0💬

What Is XHTML 1.0?
What Is XHTML 1.0? XHTML 1.0 was published as a W3C Recommendation in January 2000. XHMTL 1.0 is basically the same language as HTML 4.0. But XHTML 1.0 is defined in XML 1.0 syntax. XHTML 1.0 offers the following features: XHTML documents are XML conforming. As such, they are readily viewed, edited,...
2024-03-23, ∼3381🔥, 0💬

View Atom Feeds with Chrome Extension
How to View Atom Feeds with Google Chrome? I have the "Atom Subscription Extension" installed. If you have the "Atom Subscription Extension" installed, you can follow this tutorial to view Atom Feeds: 1. Launch Google Chrome 60. 2. Enter the following in the URL input box: http://dev.fyicenter.com/a...
2017-12-31, ∼3377🔥, 0💬

EPUB 2.0 Picture Cover Page
How to add a cover page to an EPUB 2.0 book? EPUB 2.0 does not offer any special specification to define a cover page. So the first page of book content is the cover of the book. If you don't want the cover page (the first page in "spine" list) to show up in the linear reading flow, you can use the ...
2019-01-12, ∼3373🔥, 0💬

Add Operation to API on Publisher Portal - 2017 Version
How to add a new operation to an API on the Publisher Portal of an Azure API Management Service 2017 version? You can follow this tutorial to add a new operation to an API on the Publisher Portal of an Azure API Management Service. 1. Click API from the left menu on the Publisher Portal. You see the...
2018-07-18, ∼3371🔥, 0💬

HTML http-equiv 'meta' Tag/Element
What Is an HTML http-equiv "meta" Tag/Element? a http-equiv "meta" element is a special "meta" element that provides information equivalent to HTTP headers. A http-equiv "meta" element must include the "http-equiv" attribute as, http-equiv="Content-Type". Here is some good examples: &lt;meta htt...
2017-06-23, ∼3360🔥, 0💬

View RSS Feeds with Chrome Extension
How to View RSS Feeds with Google Chrome? I have the "RSS Subscription Extension" installed. If you have the "RSS Subscription Extension" installed. you can follow this tutorial to view RSS Feeds: 1. Launch Google Chrome 60. 2. Enter the following in the URL input box: http://dev.fyicenter.com/rss_x ...
2017-11-02, ∼3356🔥, 0💬

Uploading Files into Database in PHP
How To Upload Files into Database in PHP? To store uploaded files to MySQL database, you can use the normal SELECT statement as shown in the modified processing_uploaded_files.php listed below: &lt;?php $con = mysql_connect("localhost", "", ""); mysql_select_db("fyi"); $error = $_FILES['fyicente...
2017-02-20, ∼3356🔥, 1💬

💬 2017-02-20 Jonas: Thanks for the sample code!

Google Chrome Showing RSS Feeds as XML
Why is Google Chrome Showing RSS Feeds as XML? Google Chrome is showing RSS Feeds as XML, because it has stopped the support of formatted viewing of RSS feeds by default. Follow this tutorial to see this behavior: 1. Launch Google Chrome 60. 2. Enter the following in the URL input box: http://dev.fy...
2017-10-16, ∼3355🔥, 0💬

id_token Online Decode Tool
Is there any online tool to decode an id_token string? There are several good online tools you can use to decode an id_token string. For example, go to jwt.io . Copy and paste your id_token string in the input box on left, for example: eyJhbGciOiJIUzI1NiIsInR5cCI6Ik pXVCJ9.eyJuYW1lIjoiSm9lIERvZSIsIm...
2021-06-20, ∼3354🔥, 0💬

"MathLibrary.h" - Header File of DLL Library
How to create a C++ Header File for DLL (Dynamic Link Library)? Using a Dynamic Link Library (DLL) is a great way to reuse code. Rather than re-implementing the same routines in every program that you create, you write them one time and then reference them from apps that require the functionality. B...
2023-09-16, ∼3351🔥, 0💬

HTTP POST with urllib.request
How to send an HTTP POST request with urllib.request? I want to submit a form to a Website. To submit a form to a Website, you can use the urllib.request.urlopen() function with two arguments: r = urllib.request.urlopen(url, data) where: url can be a URL string or Request object data is request body...
2018-09-13, ∼3349🔥, 0💬

View EPUB 3.0 Metadata List with Calibre
How to see more EPUB 3.0 metadata list with Calibre? You can follow this tutorial to view EPUB 3.0 metadata list with Calibre. 1. Click Row-Your-Boat-3.0.epub to download this sample EPUB 3.0 book. 2. Add Row-Your-Boat-3.0.epub to Calibre book library. You see some EPUB 3.0 metadata displayed below ...
2018-04-28, ∼3349🔥, 0💬

EPUB 3.0 Package Metadata
Where to find tutorials on EPUB 3.0 Package Metadata? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on EPUB 3.0 Package Metadata. What Is EPUB 3.0 Package Metadata EPUB 3.0 Metadata - dc:identifier Element EPUB 3.0 Metadata - dc:title Element EP...
2018-06-01, ∼3347🔥, 0💬

Create C++ Project with Visual Studio 2017
How to Create a C++ Program Project with Visual Studio 2017? If you are new to Visual Studio 2017, you can follow tutorial to create your first new C++ program project in Visual Studio 2017. 1. Start Visual Studio 2017 with Visual C++ development environment. 2. Click "File &gt; New &gt; Pro...
2023-12-01, ∼3346🔥, 0💬

Working with MySQL Database in PHP
Where to find tutorials on how to work with MySQL Database in PHP? A collection of tutorials to answer many frequently asked questions on how to Work with MySQL Database in PHP. Clear explanations and tutorial exercises are provided on connecting and selecting MySQL database, creating and dropping t...
2016-10-22, ∼3342🔥, 0💬

EPUB 2.0 Metadata in Calibre Book Library
How to view EPUB 2.0 metadata in Calibre book Library? You can follow this tutorial to view EPUB 2.0 metadata in Calibre book library. 1. Click Row-Your-Boat-2.0.epub to download this sample EPUB 2.0 book. 2. Unzip and open package.opf. You see the following metadata elements: &lt;package xmlns=...
2019-01-12, ∼3341🔥, 0💬

Joining Keys and Values into an Array in PHP
How To Join a List of Keys with a List of Values into an Array in PHP? If you have a list keys and a list of values stored separately in two arrays, you can join them into a single array using the array_combine() function. It will make the values of the first array to be the keys of the resulting ar...
2017-01-11, ∼3341🔥, 0💬

Relation between HTML and HTTP
What Is the relation between HTML and HTTP? HTTP (HyperText Transfer Protocol) is an Internet communication protocol, that allows a viewer's computer talking to a publisher's computer to fetch HTML documents and other resources. The viewer's computer issues a HTTP request message to the publisher co...
2024-02-09, ∼3340🔥, 2💬

Copying an Array in PHP
Can You Copy an Array in PHP? You can create a new array by copying an existing array using the assignment statement. Note that the new array is not a reference to the old array. If you want a reference variable pointing to the old array, you can use the reference operator "&amp;". Here is a PHP...
2017-02-03, ∼3339🔥, 0💬

Closing an HTML Element
How To Close an HTML Element? In XHTML syntax, every HTML element must be closed. There are two ways to close an HTML element: Using a closing tag, which is the element name prefixed with "/" and enclosed in a pair of angle brackets: "&lt;" and "&gt;". Closing the opening tag immediately by ...
2024-03-23, ∼3335🔥, 0💬

Test API as a Publisher Administrator
How to Test API as a Publisher Administrator? You can follow this tutorial to test an API operation as a publisher administrator. 1. Go to https://portal.azure.com with a Web browser. And log in with your company email address. 2. Find the API Management Service resource to open it. 3. Click on the ...
2018-03-28, ∼3333🔥, 0💬

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