Data is represented in name/value pairs.
Curly braces hold objects and each name is followed by ':'(colon), the name/value pairs are separated by , (comma).
Square brackets hold arrays and values are separated by ,(comma).
See this example:
JSON supports the following two data structures −
Collection of name/value pairs − This Data Structure is supported by different programming languages.
Ordered list of values − It includes array, list, vector or sequence etc.