How to remove all '#' symbols if they are at the start of word using javascript regular expression

Question

I have a string and need to remove all '#' symbols, but only in case when they are placed at the beginning of the word. For example having next string:

"#quick ##brown f#x"

Should be transformed into:

"quick brown f#x"

How it could be achieved using regular expressions in javascript? Thank you in advance for help

• Wiktor Stribiżew: What is the beginning of a word here? Start of string/whitespace?
• Waxi: Did you try searching? I ask because this has been covered many times in many different ways. For example, stackoverflow.com/questions/4564414/…

Answer 1

var a = "#quick ##brown f#x"
var e = /(^| )#+/g
a.replace(e, "1ドル")

That should do the trick.

Answer 2

use like this (\s+)\#+|^# .It will be prevent middle of the #

Demo

console.log("#quick ##brown f#x".replace(/(\s+)\#+|^#/g,"1ドル"))

• evolutionxbox: The output is incorrect. 'quickbrown f#x' !== 'quick brown f#x'

Answer 3

You could either split the string and replace every hash # sign that is at the beginning of the string.

var str = "#quick ##brown f#x",
 res = str.split(' ').map(v => v.replace(/^#+/, '')).join(' ');
 
 console.log(res);