Consider the following string:
"abc:12:toto:tata:titi"
To extract each string after ":" using split(), you will get "toto", "tata", and "titi" in this scenario.
Consider the following string:
"abc:12:toto:tata:titi"
To extract each string after ":" using split(), you will get "toto", "tata", and "titi" in this scenario.
My goal is to extract each individual string that comes after a colon:
By utilizing the split() function in conjunction with filter(), we can effectively remove any numerical values from the string.
To exclude the first element, I've implemented the use of splice(1)
const input = 'abc:12:toto:tata:titi';
const res = input.split(':').slice(1).filter(n => isNaN(n) && isNaN(parseFloat(n)));
console.log(res);[
"toto",
"tata",
"titi"
]
When dealing with colon delimited values, it is important to note that they will always consist of either purely numerical values or purely alphabetical words:
var input = "xyz:45:hello:world";
var results = input.replace(/:\d+/g, "").split(":");
results.shift();
console.log(results);By using the regex pattern :\d+ for replacement, we can eliminate the numerical elements. After splitting the values by colon, we remove the first element which cannot be a match as it is not preceded by a colon.
To extract words from a string separated by colons, you can utilize the String.prototype.split() method:
const str = 'abc:12:toto:tata:titi';
const words = str.split(':');
console.log(words);
Output:
Array(5) [ "abc", "12", "toto", "tata", "titi" ]Using regular expressions may not be necessary in this case since the delimiter is constant and simple.
If you specifically want to extract only the alphanumeric strings following a colon, you can do so with:
const str = 'abc:12:toto:tata:titi';
const filteredWords = words.slice(1).filter(word => !isNaN(parseInt(word)));
console.log(filteredWords)
Output:
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