Js string why you can use the array form of the subscript value, to find the principle.

such as code:
let str = "sdfsdfsdfdf";
console.log (str [1]) / / d

What is the specific principle of

?
the Internet says that a string is an array of characters, but I"m not sure. I hope there will be a really clear god to explain

Jun.03,2021

because String has an Iterator interface, it can be iterated. What principle do you want?
http://es6.ruanyifeng.com/-sharpdo.

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b40a9e-2c525.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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