How can I replace newlines/line breaks with spaces in javascript?

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You can use the .replace() function:

words = words.replace(/\n/g, " ");

Note that you need the g flag on the regular expression to get replace to replace all the newlines with a space rather than just the first one.

Also, note that you have to assign the result of the .replace() to a variable because it returns a new string. It does not modify the existing string. Strings in Javascript are immutable (they aren’t directly modified) so any modification operation on a string like .slice(), .concat(), .replace(), etc… returns a new string.

let words = "a\nb\nc\nd\ne";
console.log("Before:");
console.log(words);
words = words.replace(/\n/g, " ");

console.log("After:");
console.log(words);

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