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  • Building Single-page Web Apps with Meteor
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Building Single-page Web Apps with Meteor

Building Single-page Web Apps with Meteor

By : Fabian Vogelsteller
4.5 (8)
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Building Single-page Web Apps with Meteor

Building Single-page Web Apps with Meteor

4.5 (8)
By: Fabian Vogelsteller

Overview of this book

If you are a web developer with basic knowledge of JavaScript and want to take on Web 2.0, build real-time applications, or simply want to write a complete application using only JavaScript and HTML/CSS, this is the book for you. This book is based on Meteor 1.0.
Table of Contents (15 chapters)
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14
Index

"this" in template helpers and template callbacks


In Meteor, this in template helpers is used differently in template callbacks such as created(), rendered(), and destroyed().

As already mentioned, templates have three callback functions that are fired in different states of the template:

  • created: This fires when the template gets initiated but is not yet in the DOM

  • rendered: This fires when the template and all its sub templates are attached to the DOM

  • destroyed: This fires when the template is removed from the DOM and before the instance of the template gets destroyed

In these callback functions, this refers to the current template instance. The instance object can access the templates DOM and comes with the following methods:

  • this.$(selectorString): This method finds all elements that match selectorString and returns a jQuery object from those elements.

  • this.findAll(selectorString): This method finds all elements that match selectorString, but returns the plain DOM elements.

  • this.find(selectorString...

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