Answers for "how to check if all characters in string are letters javascript"

checking if a character is an alphabet in js

function isLetter(str) {
  return str.length === 1 && str.match(/[a-z]/i);
}

Posted by: Guest on May-15-2020

node.js check if characters in string

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

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

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

Posted by: Guest on August-10-2021

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