LN N ]
const blockchainPattern = /blockchain/gi
// Please note my sarcasm and humor in these, I don't mean any of them.
const sentences = [
“"JavaScript isn't a _real_ language.",
"What if we put it on the blockchain?",
"The government's hacking our IoT devices, man!",
"Pretty sure we can fix JavaScript with Blockchain."
I
// If we use match, we'll get back either null or an array.
const matches = .map(sentence => .match( )b
R L )
// [null, ["blockchain"], null, ["Blockchain"]]
// With test, we get a boolean back, making our type signature much
// simpler. Often, a boolean is all we need.
const bools = .map(sentence => - )
AL )
// [false, true, false, true]