Items tagged javascript, webdevelopment in Jan, 2012
Filters: Year: 2012 × Month: Jan × javascript × webdevelopment × Sorted by date
How is JSON different then a JavaScript (programming language) object?
JSON is a carefully selected subset of JavaScript. A JSON object can only consist of dictionaries, strings, numbers (in JavaScript floating point and integers are treated as the same thing), lists, booleans and null. The spec on JSON.org is a good guide: http://json.org/
[... 119 words]Are there any performance drawbacks when rendering DOM views at runtime with JavaScript, rather than rendering server-sent HTML?
Yes, there is quite a significant impact on first-load performance. The browser has to pull down all of the linked scripts before it can display any content—if you’re using a library like jquery that’s a sizeable chuck of code that has to be loaded and executed just on its own.
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