How to grab substring before a specified character jQuery or JavaScript

Question

I am trying to extract everything before the     comma  How do I do this in JavaScript or jQuery  I tried this and not working    1345 albany street  Bellevue WA 42344   I just want to grab the street address   var streetaddress  substr addy  0  index addy

User · Answer

If you like it short simply use a RegExp   var streetAddress           exec addy  0

User · Answer

almost the same thing as David G s answer but without the anonymous function  if you don t feel like including one   s   s substr 0  s indexOf          -1   s length   s indexOf          in this case we make use of the fact that the second argument of substr is a length  and that we know our substring is starting at 0   the top answer is not a generic solution because of the undesirable behavior if the string doesn t contain the character you are looking for   if you want correct behavior in a generic case  use this method or David G s method  not the top answer  regex and split methods will also work  but may be somewhat slower   overkill for this specific problem

User · Answer

var streetaddress  addy substr 0  addy indexOf           While it s not the best place for definitive information on what each method does  mozilla developer network is better for that  w3schools com is good for introducing you to syntax

User · Answer

try this   streetaddress substring 0  streetaddress indexOf

User · Answer

If you want to return the original string untouched if it does not contain the search character then you can use an anonymous function  a closure    var streetaddress  function s  var i s indexOf          return i  -1   s   s substr 0 i     addy     This can be made more generic   var streetaddress  function s c  var i s indexOf c      return i  -1   s   s substr 0 i     addy

User · Answer

You could use regex as this will give you the string if it matches the requirements  The code would be something like   const address    1345 albany street  Bellevue WA 42344   const regex     1-9  0-9    a-zA-Z    a-zA-Z     const matchedResult   address match regex    console log matchedResult 0       This will give you 1345 albany street    So to break the code down   1-9  0-9   basically means the first number cannot be a zero and has to be a number between 1-9 and the next number can be any number from 0-9 and can occur zero or more times as sometimes the number is just one digit and then it matches a space   a-zA-Z  basically matches all capital letters to small letters and has to occur one or more times and this is repeated

User · Answer

var streetaddress   addy substr 0  addy indexOf            You should read through a javascript tutorial  esp  the part about String functions

User · Answer

var streetaddress   addy split      0

User · Answer

split string into an array and grab the first item  var streetaddress   addy split      0     Also  I d recommend naming your variables with camel-case streetAddress  for better readability

User · Answer

You can also use shift     var streetaddress   addy split      shift      According to MDN Web Docs      The shift   method removes the first element from an array and returns that removed element  This method changes the length of the array    https   developer mozilla org en-US docs Web JavaScript Reference Global Objects Array shift

User · Answer

var newString   string substr 0 string indexOf

[javascript] How to grab substring before a specified character jQuery or JavaScript

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