Remove specific characters from a string in Javascript

Question

I am creating a form to lookup the details of a support request in our call logging system  Call references are assigned a number like F0123456 which is what the user would enter  but the record in the database would be 123456  I have the following code for collecting the data from the form before submitting it with jQuery ajax  How would I strip out the leading F0 from the string if it exists      submit   click function                           var rnum      input name rnum     var uname      input name uname      var url    rnum     rnum val       amp uname     uname val

User · Accepted Answer

Simply replace it with nothing   var string    F0123456      just an example string replace   F0  i        123456

User · Answer

Honestly I think this probably the most concise and least confusing  but maybe that is just me   str    F0123456   str replace  f0           Dont even go the regular expression route and simply do a straight replace

User · Answer

if it is not the first two chars and you wanna remove F0 from the whole string then you gotta use this regex   x000D   x000D     let string    F0123F0456F0   x000D     let result   string replace  F0 ig       x000D     console log result   x000D   x000D   x000D

User · Answer

Regexp solution   ref   ref replace   F0          plain solution   if  ref substr 0  2      F0        ref   ref substr 2

User · Answer

Another way to do it  rnum   rnum split  quot F0 quot   pop    It splits the string into two    quot  quot    quot 123456 quot    then selects the last element

User · Answer

If you want to remove F0 from the whole string then the replaceAll   method works for you   x000D   x000D  const str    F0123F0456F0  replaceAll  F0        console log str   x000D   x000D   x000D

[javascript] Remove specific characters from a string in Javascript

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