Ryan KesPGP keyI build stuffEmailGithubTwitterLast.fmMastodonMatrixJavaScript RegExp Replace Method
replace1 is a nice way to use regexps to replace text:
console.log("papa".replace("p", "m"))
console.log("Borobudur".replace(/[ou]/, "a"))
console.log("Borobudur".replace(/[ou]/g, "a"))You can also use awk like syntax to switch things around:
console.log(
"Liskov, Barbara\nMcCarthy, John\nWadler, Philip".replace(
/(\w+), (\w+)/g,
"$2 $1"
)
)You can even pass a function to replace:
let s = "the cia and fbi"
console.log(s.replace(/\b(fbi|cia)\b/g, (str) => str.toUpperCase()))let stock = "1 lemon, 2 cabbages, and 101 eggs"
function minusOne(match, amount, unit) {
amount = Number(amount) - 1
if (amount == 1) {
// only one left, remove the 's'
unit = unit.slice(0, unit.length - 1)
} else if (amount == 0) {
amount = "no"
}
return amount + " " + unit
}
console.log(stock.replace(/(\d+) (\w+)/g, minusOne))