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Javascript 189

JavaScript is a programming language used to make web pages interactive. It runs on your visitor's computer and doesn't require constant downloads from your website.

Introduction to the Javascript Promises

Introduction to the Javascript Promises

Learn what are the Javascript Promises, how do they work and how to manipulate them.

Carlos Delgado Carlos Delgado
  • July 21, 2016

  • Estimated reading time: 6 Minutes

15790
10 Useful javascript tips and practices that you may want to start applying in your projects

10 Useful javascript tips and practices that you may want to start applying in your projects

Read 10 important tips about javascript that every developer should know.

Carlos Delgado Carlos Delgado
  • July 4, 2016

  • Estimated reading time: 8 Minutes

9185
How to read a computer file using Javascript in the Browser

How to read a computer file using Javascript in the Browser

Learn to read local files in the browser using the FileReader API easily.

Carlos Delgado Carlos Delgado
  • June 29, 2016

  • Estimated reading time: 3 Minutes

40304
How to create a file and generate a download with Javascript in the Browser (without a server)

How to create a file and generate a download with Javascript in the Browser (without a server)

Learn how to generate a file using javascript in the browser and download it directly without use any server (local solution).

Carlos Delgado Carlos Delgado
  • June 26, 2016

  • Estimated reading time: 3 Minutes

906549
Encode and Decode HTML entities using pure Javascript

Encode and Decode HTML entities using pure Javascript

Learn how to encode and decode to html entities a string using javascript.

Carlos Delgado Carlos Delgado
  • June 25, 2016

  • Estimated reading time: 4 Minutes

260141
How to get the pixel color from a canvas on click or mouse event with Javascript

How to get the pixel color from a canvas on click or mouse event with Javascript

Learn how to retrieve the color of a pixel on a canvas element using javascript with different mouse events.

Carlos Delgado Carlos Delgado
  • June 23, 2016

  • Estimated reading time: 4 Minutes

66801
The canvas has been tainted by cross-origin data and tainted canvases may not be exported

The canvas has been tainted by cross-origin data and tainted canvases may not be exported

Learn why those errors appears while you work on canvas and add images from another domain or how to solve it if it comes from your own domain.

Carlos Delgado Carlos Delgado
  • June 20, 2016

  • Estimated reading time: 2 Minutes

81987
How to iterate over an Object with Javascript and jQuery optimally

How to iterate over an Object with Javascript and jQuery optimally

Learn many ways to iterate over an object properly in Javascript.

Carlos Delgado Carlos Delgado
  • June 19, 2016

  • Estimated reading time: 1 Minute

30405
How to create a Custom Event for a DOM element in Javascript

How to create a Custom Event for a DOM element in Javascript

Learn how to dispatch custom events in Javascript properly.

Carlos Delgado Carlos Delgado
  • June 18, 2016

  • Estimated reading time: 5 Minutes

26244
How to detect if caps lock (uppercase) is pressed with Javascript and jQuery

How to detect if caps lock (uppercase) is pressed with Javascript and jQuery

Learn how to detect if the user input has been pressed while caps lock is on.

Carlos Delgado Carlos Delgado
  • June 11, 2016

  • Estimated reading time: 1 Minute

14351
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