Replace multiple strings from an array using ReGex.

Hi @chrscheuer,

Here is that question I had about replacing strings.

I've created a function to replace multiple strings from an array of strings. The problem is that I can't seem to inject a "" character into the replaceReg ReGex to escape the parenthesis.

I'd like the replaceReg.toString() to log this;
"\(remove this also\)$|\(remove this\)$|\(remove that\)$|\(but not this one\)$"

If I take away all the brackets/parenthesis from both arrays it works as expected.

Here is what I have so far;

let myArray = [
  "Item 1 (remove this)",
  "Item 2 (remove that)",
  "Item 3 (remove this also)",
  "Item but not this one 4",
];

let replaceStrings = [
  "(remove this)",
  "(remove that)",
  "(remove this also)",
  "but not this one",
];

/**
 * @param {string[]} strings
 * @param {string[]} targetStrings
 */
function removeSpecifiedStrings(arrayStrings, targetStrings) {
  const replaceReg = RegExp(` ${targetStrings.join("$|")}$`, "g");

  //Log the rereplaceReg string
  log(replaceReg.toString());

  return arrayStrings.map((string, i) => string.replace(replaceReg, ""));
}

let myResult = removeSpecifiedStrings(myArray, replaceStrings);

log(myResult);

The results are as follows;

 log(replaceReg.toString()); => / (remove this)$|(remove that)$|(remove this also)$|but not this one$/g

 log(myResult); => [
    "Item 1 (remove this)",
    "Item 2 (remove that)",
    "Item 3 (remove this also)",
    "Item but not this one 4"
]

My desired result would be;

 log(myResult); => [
    "Item 1",
    "Item 2",
    "Item 3",
    "Item but not this one 4"
]

I could use something similar to the following method;

const myResult = myArray.map(x => x
  .replace("(remove this)", '')
  .replace("(remove that)", '')
  .replace("(remove this also)", '')
  .replace("but not this one", '')
);

log(myResult);

...but is there a way that I could use my first method to make it work, or better still another way?

I've also tried using String.raw with no success.

I'm probably overthinking it. But if you have a suggestion that would be great.

Thanks in advance!