json links and examples

starting point: json
another one

object:

• left-curly-bracket
• pair(,pair,pair)
• right-curly bracket

pair:

• name
• colon
• value

array:

• left-square-bracket
• value(,value,value)
• right-square-bracket

two ways to convert a string to a JSON object, one is “eval” – unsafe, better way JSON.parse

mysql-2-json
perl
php

var myObject =
{ ‘color’ : ‘blue’
, ‘animal’ : [ { ‘dog’ : ‘friendly’ , ‘cat’ : {‘name’:‘marbles’ } , ‘arrayTest’ : [‘zero!’,‘one!’,‘two’] } ]
}
;

document.writeln(myObject.animal [0].dog); // outputs friendly
document.writeln(myObject.animal [0].cat.name);
document.writeln(myObject.animal [0].arrayTest¹);

// note single quotes dont seem to work inside of the string
// that is being fed into JSON.parse() function

var JSONstring =’ \
{ “color” : “blue” \
, “animal” : \
[ \
{ “dog” : “friendly”\
, “cat” : {name" }\
, “arrayTest” : [“zero!”,“one!”,“two”]\
}\
]\
}\
‘;

//var JSONstring =‘color",“arrayTest”:[“zero!”,“one!”,“two”]}]}’;

var newObject = JSON.parse(JSONstring);

document.writeln(newObject.animal [0].arrayTest¹);