split string by space and new line in Javascript [closed]

Question

I am trying to split values in string, for example I have a string:

var example = "X Y\nX1 Y1\nX2 Y2" 

and I want to separate it by spaces and \n so I want to get something like that:

var 1 = X var 2 = Y var 3 = X1 var 4 = Y1 

And is it possible to check that after the value X I have an Y? I mean X and Y are Lat and Lon so I need both values.

Answer 1

You can replace newlines with spaces and then split by space (or vice versa).

example.replace( /\n/g, " " ).split( " " ) 

Demo: http://jsfiddle.net/fzYe7/

If you need to validate the string first, it might be easier to first split by newline, loop through the result and validate each string with a regex that splits the string at the same time:

var example = "X Y\nX1 Y1\nX2 Y2"; var coordinates = example.split( "\n" ); var results = [];  for( var i = 0; i < coordinates.length; ++i ) {     var check = coordinates[ i ].match( /(X.*) (Y.*)/ );       if( !check ) {         throw new Error( "Invalid coordinates: " + coordinates[ i ] );     }      results.push( check[ 1 ] );     results.push( check[ 2 ] );     } 

Demo: http://jsfiddle.net/fzYe7/1/