CODEWITHSUNDEEP
javascriptregex
Hoa
Hoa

Reputation: 20438

How could I use regular expressions to extract the following markup?

For example suppose # denotes a special word as follows

I took a #lovely trip to the #zoo today. We had a #wonderful time. With RegEx is it possible to extract something like 

#lovely#zoo#wonderful

Upvotes: 2

Views: 66

Answers (2)

dee-see
dee-see

Reputation: 24078

Use string.match

var str = "I took a #lovely trip to the #zoo today. We had a #wonderful time"
str.match(/#\w+/g); // #lovely,#zoo,#wonderful

Might want to tweak the regex to include numbers and symbols depending on your needs.

/#[\w\d]+/g for letters and digits, /#\S+/g for anything that is not whitespace.

EDIT: I'll add that the g at the end means that it will find all matches and not only the first one.

Upvotes: 5

Florian Margaine
Florian Margaine

Reputation: 60787

There is the regex answer. And then, there is the split answer. The following works:

var s = 'I took a #lovely trip to the #zoo today. We had a #wonderful time.'
var tags = s.split( '#' ).map( function ( str ) {
    return str.split( ' ' )[ 0 ]
} )

// Now, tags[0] is not good, so let's splice it
tags.splice( 0, 1 )

console.log( tags ) // ['lovely', 'zoo', 'wonderful']

So, yeah, it's a little more verbose than the regex solution. I find it more elegant though.

PS: you guessed it, I don't like regex!

Upvotes: 2

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