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36 lines
1.4 KiB
36 lines
1.4 KiB
4 years ago
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## Glossary
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This glossary defines terms that appear throughout the CARTO.js documentation.
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### A
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#### Ajax
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Asynchronous JavaScript + XML, while not a technology in itself, is a term coined in 2005 by Jesse James Garrett, that describes a "new" approach to using a number of existing technologies together, including HTML or XHTML, Cascading Style Sheets, JavaScript, The Document Object Model, XML, XSLT, and most importantly the XMLHttpRequest object. More info about Ajax at [Ajax](https://developer.mozilla.org/en-US/docs/Web/Guide/AJAX).
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### C
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#### Client
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Throughout CARTO.js documentation, `client` refers to the object used as an entry point to CARTO.js features.
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It's the object used to add your account credentials and to manage layers and dataviews.
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More info at [carto.Client]({{site.cartojs_docs}}/reference/#cartoclient)
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### L
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#### Layer
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A layer object is used to visualize geospatial data in CARTO.js. They have a source, where the data comes from, and a style, defining how you want the layer to look like.
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They are showed on top of a Leaflet or a Google map.
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[Layer reference]({{site.cartojs_docs}}/reference/#cartolayerlayer)
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### P
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#### Promise
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Promise objects are a standard way for handling asynchronous tasks in Javascript. More info about promises at [Using Promises - MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises).
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