How to get multiple strings between two other strings

Question

I am trying to find all values between {{ and }} that start with a $ followed by [\w.]+ but doesn't start with a number. This works in getting the value, however, it only gets the last item. What I am looking for, is a list of these items, so in this example I would like my array to contain (based off the example):

['{{I\'m $name and I am $age years old}}', '$name', '$age']

When executed, $name is not included in this array as seen here:

let result = '$welcome: {{I\'m $name and I am $age years old}}'.match(/\{\{.*(\$(?!\d|\.)[\w.]+).*\}\}/)

console.log(result)

Try \$[.\w]+(?=[^{}]*}). Or match that block first then run another regex on it. — revo
– revo, Commented Nov 8, 2018 at 16:56

revo · Accepted Answer · 2018-11-08 17:01:04Z

1

You could try the below regex:

\$[.\w]+(?=[^{}]*})

Live demo

This doesn't really match between {{ and }} but it guarantees that it wouldn't find a match which is outside of braces. It assumes that single, unbalanced braces do not occur in input string.

Another approach would be matching an entire {{...}} block then looking for \$[\w.]+ but if you need to replace them in original input string this wouldn't be an easy option.

answered Nov 8, 2018 at 17:01

revo

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2 Comments

Get Off My Lawn Over a year ago

I am trying your second method, however, /\$(?!(\d|\.))[.\w]+/ is only getting $name and not $age

Get Off My Lawn Over a year ago

Oops nope I didn't that fixes it!

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