Answers for "check if a letter is in string js"

js check if string contains character

"FooBar".includes("oo"); // true

"FooBar".includes("foo"); // false

"FooBar".includes("oo", 2); // false

Posted by: Guest on June-12-2020

check if something is a letter in js

string.charAt(1).toUpperCase() !== string.charAt(1).toLowerCase()

Posted by: Guest on December-10-2020

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