{"id":628,"date":"2019-11-24T15:59:36","date_gmt":"2019-11-24T07:59:36","guid":{"rendered":"http:\/\/blog.xrhoujie.com\/?p=628"},"modified":"2019-11-24T15:59:36","modified_gmt":"2019-11-24T07:59:36","slug":"javascript-%e5%b8%b8%e7%94%a8%e5%9f%ba%e7%a1%80%e5%87%bd%e6%95%b0%e8%bd%ac%e6%8d%a2","status":"publish","type":"post","link":"http:\/\/blog.xrhoujie.com\/?p=628","title":{"rendered":"javascript \u5e38\u7528\u57fa\u7840\u51fd\u6570\u8f6c\u6362"},"content":{"rendered":"
\u5bf9\u8c61\u8f6c\u5b57\u7b26\u4e32<\/div>\n
var str = JSON.stringify(jsObj);<\/div>\n
console.log(typeof str); \/\/string<\/div>\n
<\/div>\n
\u5b57\u7b26\u4e32\u8f6c\u5bf9\u8c61<\/div>\n
var str1 = JSON.parse(str);<\/div>\n
console.log(typeof str1); \/\/object<\/div>\n
——————————————————————<\/div>\n
\u5bf9\u8c61\u8f6c\u6570\u7ec4<\/div>\n
console.log(Object.keys(cat)); \/\/ [“name”, “age”, “color”, “desc”] \u3001<\/div>\n
console.log(Object.values(cat)); \/\/ [“\u2019mini”, “2”, “yellow”, “cute”]<\/div>\n
<\/div>\n
\u6570\u7ec4\u8f6c\u5bf9\u8c61<\/div>\n
Object.assign({},[1,2,3])<\/div>\n
——————————————————————<\/div>\n
\u5b57\u7b26\u4e32\u8f6c\u6570\u7ec4<\/div>\n
str = ‘1,2,3,4,5,5’<\/div>\n
var arr=str.split(“,”);<\/div>\n
<\/div>\n
\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32<\/div>\n
arr.join()<\/div>\n
——————————————————————<\/div>\n
\u5b57\u7b26\u4e32\u8f6c\u6570\u5b57<\/div>\n
parseInt(‘12.2’) parseFloat(”)<\/div>\n
<\/div>\n
\u6570\u5b57\u8f6c\u5b57\u7b26\u4e32<\/div>\n
arr.toString()<\/div>\n
——————————————————————<\/div>\n
\u5c06\u5b57\u7b26\u4e32\u8f6c\u5316json\u5bf9\u8c61<\/div>\n
var str = ‘{“name”:”\u5c0f\u660e”,”age”:18}’;<\/div>\n
var json = JSON.parse(str);<\/div>\n
var json = eval(“(” + str + “)”);<\/div>\n
var json = (new Function(“return ” + str))(); \/\/object{name:’\u5c0f\u660e’,age:18}<\/div>\n
<\/div>\n
\u5b57\u7b26\u4e32\u8f6c\u65f6\u95f4<\/div>\n
var s =”2017-10-10 19:00:00.123″;<\/div>\n
s = s.replace(\/-\/g,”\/”);<\/div>\n
s = s.replace(\/(\\.\\d+)?\/g,””);<\/div>\n
alert(s);<\/div>\n
var date = new Date(s);<\/div>\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

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