How to convert comma separated string into numeric array in javascript

Question

I have a one-dimensional array of integer in JavaScript that I d like to add data from comma separated string  Is there a simple way to do this   e g   var strVale    130 235 342 124

User · Answer

123 87 65  split      map Number   gt   123  87  65    Edit     Thanks to  NickN  amp   connexo remarks   A filter is applicable if you by eg  want to exclude any non-numeric values         0  6  45 x78 94c  split      filter x   gt  x trim   length  amp  amp   isNaN x   map Number   gt   0  6  45

User · Answer

You can use split   to get string array from comma separated string  If you iterate and perform mathematical operation on element of string array then that element will be treated as number by run-time cast but still you have string array  To convert comma separated string int array see the edit   arr   strVale split         Live Demo  var strVale    130 235 342 124   arr   strVale split       for i 0  i  lt  arr length  i        console log arr i        2        arr i   2     Output  130   2   260 235   2   470 342   2   684 124   2   248   Edit  Comma separated string to int Array In the above example the string are casted to numbers in expression but to get the int array from string array you need to convert it to number   var strVale    130 235 342 124   var strArr   strVale split       var intArr       for i 0  i  lt  strArr length  i       intArr push parseInt strArr i

User · Answer

Solution    var answerInt       var answerString    1 2 3 4   answerString split      forEach function  item       answerInt push parseInt item

User · Answer

All of the given answers so far create a possibly unexpected result for a string like   1 0 -1      2      1 0 -1      2  split      map Number  filter x   gt   isNaN x       0  1  0  -1  0  0  0  2      To solve this  I ve come up with the following fix     1 0 -1      2  split      filter x   gt  x trim           map Number  filter x   gt   isNaN x       1  0  -1  2      Please note that due to  isNaN        false    and   isNaN         false   we cannot combine both filter steps

User · Answer

just you need to use couple of methods for this  that s it   var strVale    130 235 342 124   var resultArray   strVale split      map function strVale  return Number strVale        the output will be the array of numbers

User · Answer

You can split and convert like   var strVale    130 235 342 124     var intValArray strVale split        for var i 0 i lt intValArray length i         intValArray i  parseInt intValArray i        Now you can use intValArray in you logic

User · Answer

The split   method is used to split a string into an array of substrings  and returns the new array   Syntax    string split separator limit    arr    strVale split         SEE HERE

User · Answer

This is an easy and quick solution when the string value is proper with the comma      But if the string is with the last character with the comma  Which makes a blank array element  and this is also removed extra spaces around it       123 234 345     So I suggest using push    var arr       str  123 234 345   str split      map function item       if item trim        arr push item trim

User · Answer

You can use the String split method to get the single numbers as an array of strings  Then convert them to numbers with the unary plus operator  the Number function or parseInt  and add them to your array   var arr    1 2 3       strVale    130 235 342 124    var strings   strVale split       for  var i 0  i lt strVale length  i        arr push    strings i       Or  in one step  using Array map to convert them and applying them to one single push   arr push apply arr  strVale split      map Number

[javascript] How to convert comma separated string into numeric array in javascript

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