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json.tool - JSON Pretty-Print Tool
What is json.tool? Can I use it to convert a JSON string a pretty-print format? json.tool is a special internal executable module - a module with main() so you can run it as Python script. When you run json.tool, (or json.module.main()), it will read a JSON string from the stand input and write the ...
2018-09-24, ∼3486🔥, 0💬

2017 Version of API Management Services
Where to find tutorials on the 2017 version of API Management Services at Azure Portal? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on the 2017 version of API Management Services at Azure Portal: Azure API Management Service - 2017 Version Azu...
2018-07-22, ∼3482🔥, 0💬

Atom Element Types: "feed" and "entry"
What are main Atom element types? There are 2 main element types defined for Atom feed files: Atom Feed Element - Representing an Atom feed, including metadata about the feed, and some or all of the entries associated with it. Its root element is the &lt;feed&gt; element. Atom Entry Element ...
2017-12-09, ∼3479🔥, 0💬

Supporting Hidden Form Fields in PHP
How To Support Hidden Form Fields in PHP? Hidden fields are special fields in a form that are not shown on the Web page. But when the form is submitted, values specified in the hidden fields are also submitted to the Web server. A hidden field can be specified with the &lt;INPUT TYPE=HIDDEN ...&...
2016-11-08, ∼3473🔥, 0💬

Introduction of EPUB 2.0 Specification
Where to find tutorials on introduction of EPUB 2.0 Specification? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on introduction of EPUB 2.0 Specification. What Is EPUB 2.0 Specification Minimum Requirement of EPUB 2.0.1 File Hello-2.0.epub - "m...
2019-01-12, ∼3467🔥, 0💬

"Failed to load gRPC binary module" Error
Why am I getting the "Failed to load gRPC binary module" error when running a Node.js client application? If your Node.js environment is out of sync, you will get the "Failed to load gRPC binary module" error as shown below: $ cp ~/hyperledger-binaries/fabric- samples/fabcar/javascript$ node enrollA...
2020-01-04, ∼3462🔥, 0💬

WPF App with VC# Code in Visual Studio 2017
How to build a WPF application with VC# code to control its behavior in Visual Studio 2017? After you have created your WPF application with XAML to define its UI elements, you can follow this tutorial to add VB code to control its behavior in Visual Studio 2017: 1. Create a "WPF App (.NET Framework...
2017-08-08, ∼3457🔥, 0💬

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Where to find tutorials as Introduction to OpenID. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team as Introduction to OpenID. What Is OpenID What Is OpenID Connect OpenID Usage Statistics Differences between OpenID and OAuth   ⇒ What Is OpenID ⇐ ...
2019-01-20, ∼3452🔥, 0💬

Installing 'requests' Module
How to install "requests" module? I am getting the "ModuleNotFoundError: No module named 'requests'" error. If you are getting the following error when running "import requests", you need to follow this tutorial to install the "requests" module. C:\fyicenter&gt;python Python 3.6.2 (v3.6.2:5fd33b...
2018-09-01, ∼3451🔥, 0💬

Use Custom Variables in Policy Expressions
How to use custom variables created by "set-variable" statements in policy expressions? If you want to access custom variables created by "set-variable" statements, you can use the IReadOnlyDictionary object through "context.Variables". For example, the following policy creates a custom variable dur...
2018-01-24, ∼3446🔥, 0💬

EPUB 2.0 Metadata - dc:language Element
What is EPUB 2.0 Metadata "dc:language" Element? EPUB 2.0 Metadata "dc:language" is a required metadata element to specify the primary language of the EPUB 2.0 book. When using "dc:language" metadata element, you should the an ISO 639 language code to specify the language. For example, the following...
2022-04-13, ∼3442🔥, 0💬

Smallest Valid XHTML5 Document
What is a Smallest Valid XHTML5 Document? If you are interested to see the smallest, but valid, XHTML5 document, look at this one: &lt;?xml version="1.0" ?&gt; &lt;!DOCTYPE html&gt; &lt;html xmlns="http://www.w3.org/1999/ xhtml"&gt;&lt;head&gt;&lt;ti tle&gt;Hel...
2024-03-17, ∼3440🔥, 0💬

Visual Studio 2017 .NET Program Folders
In which folders Visual Studio 2017 .NET programs are located on my Windows computer? When Visual Studio 2017 .NET is installed on your Windows computer, its programs are located the following folders: .NET Framework location: C:\Program Files (x86)\Microsoft.NET .NET Framework support for Visual St...
2017-09-19, ∼3429🔥, 0💬

XML to JSON Conversion
Where to find tutorials on XML to JSON Conversion? Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on XML to JSON Conversion: Issues of Converting XML to JSON Mapping XML Attributes to JSON Values Mapping XML Simple Elements to JSON Values Mapping...
2023-09-05, ∼3428🔥, 0💬

JSON-stringify-Object.html - JSON.stringify() on Objects
How JSON.stringify() behaves on JavaScript objects? When processing an object, JSON.stringify() behave depending on the type of objects based on the following rules: Boolean, Number, and String objects are converted to the corresponding primitive JSON values during stringification. Date objects are ...
2017-09-08, ∼3421🔥, 0💬

HTML Entities
What Is an HTML Entity? An HTML entity is escape sequence used to represent a special character that is hard to enter via a normal keyboard. For example, you can not find a key on your keyboard to enter the copyright character, "©" directly. You need to use the HTML entity "&amp;copy;" to repres...
2024-04-14, ∼3417🔥, 0💬

Quoting Date and Time Values in PHP
How To Quote Date and Time Values in SQL Statements in PHP? If you want to provide date and time values in a SQL statement, you should write them in the format of "yyyy-mm-dd hh:mm:ss", and quoted with single quotes ('). The tutorial exercise below shows you two INSERT statements. The first one uses...
2016-10-19, ∼3396🔥, 0💬

Create New Instances of a Class
How to Create a New Instance of a Class? There are two ways to create a new instance (object) of a class (or type): 1. The short way: Call the class name as the class constructor function with the following syntax. It will return an instance of the given class. &gt;&gt;&gt; x = class_nam...
2018-01-27, ∼3395🔥, 0💬

Create Visual Basic Project in Visual Studio 2017
How to Create a Visual Basic Program Project with Visual Studio 2017? If you are new to Visual Studio 2017, you can follow tutorial to create your first Visual Basic program project in Visual Studio 2017. 1. Start Visual Studio 2017 with .NET development environment. 2. Click "File &gt; New &...
2023-09-16, ∼3390🔥, 0💬

"Hello.c" - Compile and Run C Program
How to use Visual Studio command tools to compile and run a C program? If you want to compile and run a standard C program with Visual Studio command tools, you can follow this tutorial: 1. Create a simple C program, Hello.c, with a text editor: #include &lt;stdio.h&gt; void main() { printf(...
2017-08-21, ∼3390🔥, 0💬

"MyLib.lib" - C++ Class and Static Library
How to create a C++ class and build it into a static library? If you want to create a C++ class and build it into a static library, you can follow this tutorial: 1. Create the header file, MyLib.h, with a text editor: // MyLib.h // Copyright (c) FYIcenter.com namespace fyi { class MyLib { public: st...
2023-06-19, ∼3382🔥, 0💬

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, ∼3381🔥, 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, ∼3377🔥, 0💬

Python Built-in Primitive Data Types
What Are Python Built-in Primitive Data Types? Python Built-in Primitive Data Types are data types provided by the Python interpreter to represent individual data values. Here is a list of Python Built-in Primitive Data Types: "NoneType" - A special data type represents a single value of nothing, wh...
2023-01-06, ∼3375🔥, 0💬

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