1. JSON.parse(jsonString): 在一個字符串中解析出JSON對象javascript
var str = '[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]'; JSON.parse(str);
結果:java
2. JSON.stringify(obj) : 將一個JSON對象轉換成字符串jquery
var obj = [{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]; JSON.stringify(obj);
結果:json
"[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]"
3. jQuery.parseJSON(jsonString) : 將格式無缺的JSON字符串轉爲與之對應的JavaScript對象
瀏覽器
var str = '[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]'; jQuery.parseJSON(str);
結果:ide
4.JSON.parse()和jQuery.parseJSON()的區別:
有的瀏覽器不支持JSON.parse()方法,使用jQuery.parseJSON()方法時,在瀏覽器支持時會返回執行JSON.parse()方法的結果,不然會返回相似執行eval()方法的結果,以上結論參考jquery 1.9.1 得出:
spa
parseJSON: function( data ) { // Attempt to parse using the native JSON parser first if ( window.JSON && window.JSON.parse ) { return window.JSON.parse( data ); } if ( data === null ) { return data; } if ( typeof data === "string" ) { // Make sure leading/trailing whitespace is removed (IE can't handle it) data = jQuery.trim( data ); if ( data ) { // Make sure the incoming data is actual JSON // Logic borrowed from http://json.org/json2.js if ( rvalidchars.test( data.replace( rvalidescape, "@" ) .replace( rvalidtokens, "]" ) .replace( rvalidbraces, "")) ) { return ( new Function( "return " + data ) )(); } } } jQuery.error( "Invalid JSON: " + data ); },