JS generates 26 uppercase and lowercase letters

Mainly used in the Str.charcodeat () and String.fromCharCode () methods

--"Use charCodeAt () to get the Unicode encoding of a specific character in a string.

--"fromcharcode () can accept one (or more) specified Unicode values and return the corresponding string.

//generates an uppercase letter A with a Unicode value offunctiongeneratebig_1 () {varstr = [];  for(vari=65;i<91;i++) {Str.push (String.fromCharCode (i)); }    returnstr;}//generates a Unicode value of uppercase afunctionGeneratesmall_1 () {varstr = [];  for(vari=97;i<123;i++) {Str.push (String.fromCharCode (i)); }    returnstr;}//Convert a string to a Unicode codefunctionTounicode (str) {varCodes = [];  for(vari=0;i<str.length;i++) {Codes.push (Str.charcodeat (i)); }    returncodes;}functionGeneratesmall () {varCh_small = ' a '; varStr_small = ' ';  for(vari=0;i<26;i++) {Str_small+ = String.fromCharCode (ch_small.charcodeat (0) +i); }    returnStr_small;}functionGeneratebig () {varCh_big = ' A '; varStr_big = ' ';  for(vari=0;i<26;i++) {Str_big+ = String.fromCharCode (ch_big.charcodeat (0) +i); }    returnStr_big;} Console.log (Generatebig ()); Console.log (Generatesmall ()); Console.log (Tounicode (Generatebig ())); Console.log ( Tounicode (Generatesmall ())); Console.log (generatebig_1 ()); Console.log (Generatesmall_1 () );

Can get results--"

Where fromCharCode plays a significant role in the conversion of HTML entity characters, see above

JS generates 26 uppercase and lowercase letters