By Basarat Syed
Beginning Node.js is your step by step advisor to studying all of the elements of making maintainable Node.js purposes. you'll find how Node.js is targeted on developing high-performing, highly-scalable web content, and the way effortless it truly is to start. Many front-end devs frequently paintings with HTML, CSS, personal home page, even WordPress, yet have not but obtained began with Node.js. This booklet explains every thing for you from a newbie point, allowing you to begin utilizing Node.js on your tasks correct away.
Node.js is a brilliant and straightforward platform to paintings with. it's light-weight, effortless to install and deal with. you will discover how utilizing Node.js could be a enjoyable and lucrative event - commence this day with Beginning Node.js.
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Create internet Charts with jqPlot exhibits tips to convert your facts into crowd pleasing, cutting edge, lively, and hugely interactive browser-based charts. This ebook is appropriate for builders of all event degrees and wishes: when you love quick and potent options, you should use the jqPlot library to generate charts with outstanding results and animations utilizing just a couple of strains of code.
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Format('%s has %d dollars', name, money)); Additionally, util has a few functions to check if something is of a particular type (isArray, isDate, isError). These functions are demonstrated in Listing 3-44. Listing 3-44. js code in the browser, we need to learn a bit more about the various module systems. We need to understand the need for AMD and what differentiates it from CommonJS. js follows the CommonJS module specification. This module system is great for the server environment when we have immediate access to the file system.
You still use the require function. The only difference is that instead of a relative path to the file, you simply specify the name of the module to the require function. For example, to consume the core path module, you write a require statement like var path = require('path'). As with file-based modules, there is no implicit global namespace pollution and what you get is a local variable that you name yourself to access the contents of the module. For example, in var path = require('path') we are storing it in a local variable called path.
For example, it converts a string to a number so that you can compare it with a number, as shown in Listing 2-30. Listing 2-30. js However, the choices it makes are not always ideal. For example, in Listing 2-31, the first statement is false because ’’ and ‘0’ are both strings and are clearly not equal. However, in the second case, both ‘0’ and the empty string (’’) are falsy (in other words, they behave like false) and are therefore equal with respect to ==. Both statements are false when you use ===.
Beginning Node.js by Basarat Syed