set regex with input variables

Asked Dec 30 '17 at 08:06

Active Dec 30 '17 at 11:17

Viewed 55 times

I spent hours but can not fix my problem,

<script>
function myFunction() {
    var str = document.getElementById("text").value;
    var pattern = document.getElementById("inputpattern").value;
    var replacetext = document.getElementById("inputreplacetext").value;
    var n = str.replace(pattern,replacetext);
    document.getElementById("demo").innerHTML = n;
}
</script>

I need to set str.replace(pattern,replacetext); with html input fields, why doesn't it work?

edited Dec 30 '17 at 11:17

Donald Duck

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asked Dec 30 '17 at 08:06

justdoit

1

How is this function getting invoked? – Hassan Imam Dec 30 '17 at 08:09
Look at this pls – justdoit Dec 30 '17 at 08:13
https://codeshare.io/GbzlxM – justdoit Dec 30 '17 at 08:13
@HassanImam and others pls – justdoit Dec 30 '17 at 08:18
https://stackoverflow.com/questions/874709/converting-user-input-string-to-regular-expression Btw, var n = str.replace(eval(pattern),replacetext); will work, but you need to find some less evil way. ;) – sinisake Dec 30 '17 at 08:26
@sinisake Thank you so much , just try to create a tool for some guys , then they can try regex in gui :) Thankss – justdoit Dec 30 '17 at 08:39

set regex with input variables

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