Get Full string using part of a given string

Question

var string = "Let's say the user inputs hello world inputs inputs inputs";

My input to get the whole word is "put".

My expected word is "inputs"

Can anyone share your solution? Thanks in advance

Someone surely can, but unless you make some effort yourself, we won't. — The Paramagnetic Croissant
– The Paramagnetic Croissant, Commented Nov 21, 2014 at 11:56
What if the input is "I put putty on the computer"? Should the result be ["put", "putty", "computer"]? — Michael Laszlo
– Michael Laszlo, Commented Nov 21, 2014 at 11:58
@AlexK Hmm, that looks suspiciously like an answer, not a comment. — user663031
– user663031, Commented Nov 21, 2014 at 12:00

Michael Laszlo · Accepted Answer · 2014-11-21 12:25:43Z

2

One way to do what you're asking is to split the input string into tokens, then check each one to see if it contains the desired substring. To eliminate duplicates, store the words in an object and only put a word into the result list if you're seeing it for the first time.

function findUniqueWordsWithSubstring(text, sub) {
    var words = text.split(' '),
        resultHash = {},
        result = [];
    for (var i = 0; i < words.length; ++i) {
        var word = words[i];
        if (word.indexOf(sub) == -1) {
            continue;
        }
        if (resultHash[word] === undefined) {
            resultHash[word] = true;
            result.push(word);
        }
    }
    return result;
}

var input = 'put some putty on the computer output',
    words = findUniqueWordsWithSubstring(input, 'put');
alert(words.join(', '));

edited Nov 21, 2014 at 12:25

answered Nov 21, 2014 at 12:06

Michael Laszlo

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Comments

Alex K. · Accepted Answer · 2014-11-21 13:29:06Z

1

A RegEx and filter to remove duplicates;

var string = "I put putty on the computer. putty, PUT do I"

var uniques = {};
var result = (string.match(/\b\w*put\w*\b/ig) || []).filter(function(item) {
   item = item.toLowerCase();
   return uniques[item] ? false : (uniques[item] = true);
});

document.write( result.join(", ") );

// put, putty, computer

edited Nov 21, 2014 at 13:29

answered Nov 21, 2014 at 13:22

Alex K.

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