most used string methods in javascript
charAt(x)
charCodeAt(x)
concat(v1,v2..)
fromCharcode(c1,c2)
indexOf(substr, [start])
lastIndexOf(substr, [start])
JavaScript - javascript string function- Edurekamatch(regexp)
replace(regexp/substr, replacetext)
search(regexp)
slice(start, [end])
split(delimiter, [limit])
substr(start, [length])
substring(from, [to])
toLowerCase()
toUpperCase()
includes()
endsWith()
repeat()
valueOf()
trim()