JavaScript string and array conversion summary _javascript tips

Array spin string

1.join () method

var s= ["A", "D", "a", "F", "G", "F", "s", "G"];
S.join ()//"A,d,a,f,g,f,s,g"
s.join ("")//"A D a f g f S G"
S.join (")"; Adafgfsg

Array of strings

1.call () method

var str = "ADAFGFSG";
var Strarr = Array.prototype.slice.call (str,0);
Console.log (Strarr);

Result: ["a", "D", "a", "F", "G", "F", "s", "G"]

2. Regular expressions

var str = "ADAFGFSG";
var Strarr = str.replace (/(.) (?=.) /g, ' $ '). Split (', ');
Console.log (Strarr);
var str = "ADAFGFSG";
var Strarr = Str.match (/\w/g);
Console.log (Strarr);

Result: ["a", "D", "a", "F", "G", "F", "s", "G"]

3. Direct use of Split () method

var str = "ADAFGFSG";
var Strarr = Str.split (');
Console.log (Strarr);

Result: ["a", "D", "a", "F", "G", "F", "s", "G"]

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