change Thai month names to English using JS-CodePudding

I have this date 21 ต.ค. 2022 06:10 PM and i would like to change into 21 Oct 2022 06:10 PM.

This is my code:

var date = "21 ต.ค. 2022 06:10 PM";

var monthNamesThai = ["ม.ค.", "ก.พ.", "มี.ค.", "เม.ย.", "พ.ค.", "มิ.ย.", "ก.ค.", "ส.ค.", "ก.ย.", "ต.ค.", "พ.ย.", "ธ.ค."];

// var monthNamesEng = ["01", "02", "03", "04", "05", "06",  "07", "08", "09", "10", "11", "12"];
var monthNamesEng = ["Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"];
  
var d = new Date(date);

console.log("Change date "   d   " = "   ('0'   d.getDate()).slice(-2)   " "   monthNamesEng[d.getMonth()]   " "   d.getFullYear());

in which I get the output: Change date Invalid Date = aN undefined NaN. Is there a simple way to change the Thai month names to English without using Moment.js? Thanks in advance

CodePudding user response：

var date = "21 ต.ค. 2022 06:10 PM";

var monthNamesThai = ["ม.ค.", "ก.พ.", "มี.ค.", "เม.ย.", "พ.ค.", "มิ.ย.", "ก.ค.", "ส.ค.", "ก.ย.", "ต.ค.", "พ.ย.", "ธ.ค."];

// var monthNamesEng = ["01", "02", "03", "04", "05", "06",  "07", "08", "09", "10", "11", "12"];
var monthNamesEng = ["Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"];

const thaiMonth = date.substring(date.indexOf(" ")   1, date.indexOf(" ")   5) 
console.log(date.replace(thaiMonth, monthNamesEng[monthNamesThai.indexOf(thaiMonth)]))

CodePudding user response：

make sure you Thai date always has the same format as this one, otherwise this will not work.

let date = "21 ต.ค. 2022 06:10 PM";

let monthNamesThai = ["ม.ค.", "ก.พ.", "มี.ค.", "เม.ย.", "พ.ค.", "มิ.ย.", "ก.ค.", "ส.ค.", "ก.ย.", "ต.ค.", "พ.ย.", "ธ.ค."];

let monthNamesEng = ["Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"];

// change Thai month to english month
let englishDate = date.split(" ");
englishDate.splice(1, 1, monthNamesEng[monthNamesThai.indexOf(date.split(" ")[1])]);
englishDate = englishDate.join(" ");
  
let d = new Date(englishDate);

console.log("Change date "   d   " = "   ('0'   d.getDate()).slice(-2)   " "   monthNamesEng[d.getMonth()]   " "   d.getFullYear());