Question

the string looks like this

"blabla blabla-5 amount-10 blabla direction-left"

How can I get the number just after "amount-", and the text just after "direction-" ?

Answer 1

This uses regular expressions and the exec method:

var s = "blabla blabla-5 amount-10 blabla direction-left";
var amount = parseInt(/amount-(\d+)/.exec(s)[1], 10);
var direction = /direction-([^\s]+)/.exec(s)[1];

The code will cause an error if the amount or direction is missing; if this is possible, check if the result of exec is non-null before indexing into the array that should be returned.