Remove unwanted matching text from string and get required value using js

Question

I have string it contain unwanted html tags and text, so I want to remove unwanted matching text and get my required values:

Code:

var mystring = "<!-- html-text: 143 --> value 1  <!-- /html-text --><!-- html-text: 144 --> | <!-- /html-text --><!-- react-text: 145 --> value 3 <!-- /html-text --><!-- html-text: 146 -->, <!-- /html-text --><!-- html-text: 147 --> value 2 <!-- /html-text --><!-- html-text: 148 --> <!-- /html-text --><!-- html-text: 149 -->value 4 <!-- /html-text -->";
mystring = mystring.replace('<!-- html-text: 143 -->','');

console.log('str'+mystring);

Required output:

value 1  value 2 value 3 value 4

@Bravo I need all value1,value2, value3,value4 separated by space.... in question I forgot to mentioned value 4 — user_1234
– user_1234, Commented Feb 28, 2022 at 5:40
@Bravo thank you so much ,, thanks a lot You saved my lot of time... can u please explain this regex in 1 or 2 line if possible so that next time I can do it without any issue. — user_1234
– user_1234, Commented Feb 28, 2022 at 5:49

code · Accepted Answer · 2022-02-28 05:52:53Z

1

You can do this with regex:

var mystring = "<!-- html-text: 143 --> value 1  <!-- /html-text --><!-- html-text: 144 --> | <!-- /html-text --><!-- react-text: 145 --> value 3 <!-- /html-text --><!-- html-text: 146 -->, <!-- /html-text --><!-- html-text: 147 --> value 2 <!-- /html-text --><!-- html-text: 148 --> <!-- /html-text --><!-- html-text: 149 -->value 4 <!-- /html-text -->";
mystring = mystring.replace(/<!--.*?-->/g,'');

console.log(mystring);

Regex explanation:

 Marks the opening and ending of an HTML comment
.* Matches any character zero or more times
? Remove "greedy matching" (match the least possible instead of most)
g Global, meaning to replace all occurrences instead of just one

answered Feb 28, 2022 at 5:52

code

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