JavaScript String Methods Explained Simply

concat() Combines strings
indexOf() returns index of character
match() matches based on REGEXP
slice() Returns a substring based on the “start” and “end” parameters
split() Splits a string according to the specified delimiter

const enteredTopic = "  JavaScript Closures  ";
const topic = enteredTopic.trim().toLowerCase();

console.log(topic);
console.log(topic.includes("closures"));
console.log(topic.replace(" ", "-"));
console.log(enteredTopic === "  JavaScript Closures  ");

Outputjavascript closures true javascript-closures true

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