JavaScript JSON.parse ()
JSON.parse () method is used to convert a JSON string object.
grammar
JSON.parse(text[, reviver])
Parameter Description:
- text: Required, a valid JSON string.
- reviver: Optional, a result of the conversion function, this function is called for each member object.
return value:
Back to the given object into a JSON string after.
Examples
<P id = "demo"> </ p>
<Script>
document.getElementById ( "demo"). innerHTML =
obj.employees [1] .name + "" + obj.employees [1] .site;
</ Script>
<Script>
document.getElementById ( "demo"). innerHTML =
obj.employees [1] .name + "" + obj.employees [1] .site;
</ Script>
try it"
Use the optional parameters:
JSON.parse('{"p": 5}', function(k, v) { if (k === '') { return v; } return v * 2; }); JSON.parse('{"1": 1, "2": 2, "3": {"4": 4, "5": {"6": 6}}}', function(k, v) { console.log(k); // 输出当前属性,最后一个为 "" return v; // 返回修改的值 });