I have a function to always remove the 2nd word from a sentence.
public cleanMessage(message) {
let cleanedMessage: any = message.split(' ');
cleanedMessage.splice(1, 1);
cleanedMessage = cleanedMessage.join(' ');
return cleanedMessage;
}
cleanMessage('Hello there world')
// outputs 'Hello world'
Is there a cleaner way of doing this?
If you're just looking to shorten it, you can use regex:
(?<=\S)\s\S+ will take out the second word in the string
(?<=\S) creates a lookbehind for a word\s\S+ selects a space with a word after itYou can then remove this space + word with:
public cleanMessage(message) {
return message.replace(/(?<=\S)\s\S+/, '');
}
Regexp is indeed shorter and IMO easier to read as long as you use simpler operators.
string.replace(/^(\S+)\s+\S+/, '$1')
^ |
from beginning of string |
(\S+) |
take and remember non-spaces - 1st word |
\s+ |
followed by spaces |
\S+ |
and another word |
$1 |
replace with remembered first word |
What you wrote is already pretty much as clean as possible.
You could write it a little shorter maybe like:
public cleanMessage = (message) => message
.split(' ')
.filter((word, i) => i !== 1)
.join(' ');