如何使用JavaScript正则表达式删除所有'＃'符号（如果它们在单词开头）

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

Answer 1

var a = "#quick ##brown f#x"

var e = /(^| )#+/g
a.replace(e, "$1")

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")) 

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);