Arrays, strings, each conversion JSON

Array to String

var arr = [1,2,3,4, 'Bad', 'Merge']; 
var arr.join STR = ( ','); 
the console.log (STR); // 1,2,3,4 , Bud, merge

Turn an array of strings

var str = '1,2,3,4, Bard, Merge'; 
var str.split ARR = ( ','); 
the console.log (ARR); // [ ". 1", "2", ". 3 "," 4 "," Bad "," Merge "] array 
console.log (arr [4]); // Bad

String transfer array, the array format switch array, an array of arrays format turn

var str = '1,2,3,4,巴德,merge';
var arr = str.split(',');
var strify = JSON.stringify(arr);
console.log(arr);       // ["1", "2", "3", "4", "巴德", "merge"]   数组
console.log(arr[4]);    // 巴德
console.log(strify);    // ["1", "2", "3", "4", "巴德", "merge"]   字符串

var arrParse = JSON.parse(strify);
console.log(arrParse);  // ["1", "2", "3", "4", "巴德", "merge"]   数组

Array to String

var arr = [1,2,3,4, 'Bad', 'Merge']; 
var arr.join STR = ( ','); 
the console.log (STR); // 1,2,3,4 , Bud, merge

Turn an array of strings

var str = '1,2,3,4, Bard, Merge'; 
var str.split ARR = ( ','); 
the console.log (ARR); // [ ". 1", "2", ". 3 "," 4 "," Bad "," Merge "] array 
console.log (arr [4]); // Bad

String transfer array, the array format switch array, an array of arrays format turn

var str = '1,2,3,4,巴德,merge';
var arr = str.split(',');
var strify = JSON.stringify(arr);
console.log(arr);       // ["1", "2", "3", "4", "巴德", "merge"]   数组
console.log(arr[4]);    // 巴德
console.log(strify);    // ["1", "2", "3", "4", "巴德", "merge"]   字符串

var arrParse = JSON.parse(strify);
console.log(arrParse);  // ["1", "2", "3", "4", "巴德", "merge"]   数组