I have the following array point[] with:
11,133,3032,144,412,44,43,44,444,54,22,44,11,163,480,344
And I am trying to split with a , every 4.
I would like something like:
point[0] = 11,133,3032,144
point[1] = 412,44,43,44
point[2] = 444,54,22,44
point[3] = 11,163,480,344
I alreday tried :
str.split(",", 4); but still have the comma at the end and problem of size.
How can I proceed?
Thanks!
You can do this by splice-ing the array.
var str = "11,133,3032,144,412,44,43,44,444,54,22,44,11,163,480,344";
var arr = str.split(','), result = [];
while(arr.length > 0) {
result.push(arr.splice(0, 4));
}
If you have an array instead of the string, you can just use the last three lines.
If you are trying to get sub strings from the string, you can also do it with regular expressions.
str = "11,133,3032,144,412,44,43,44,444,54,22,44,11";
points = [];
while((match = /([0-9]+,){3}[0-9]+/.exec(str)) != null){
points.push(match[0]);
str = str.replace(/([0-9]+,){3}[0-9]+,*/, "");
}
if (str!="") //if last substring has less than 4 elements
points.push(str);
