Conventions used

There are a number of text conventions used throughout this book.

CodeInText: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: "This gruntfile.js is necessary to set up all of the Grunt tasks."

A block of code is set as follows:

test = this is a string
test = 1
test = function (a, b) {
 return a + b;
}

When we wish to draw your attention to a particular part of a code block, the relevant lines or items are set in bold:

declare function describe( 
    description: string,  
    specDefinitions: () => void 
): void; 

Any command-line input or output is written as follows:

npm install -g typescript

Bold: Indicates a new term, an important word, or words that you see on screen. For example, words in menus or dialog boxes appear in the text like this. Here is an example: "Select System info from the Administration panel."