regex to match everything after second underscore

i have this array

var collUnlocked = ['GRAVEL_1', 'GRAVEL_3', 'GRAVEL_2', 'GRAVEL_5', 'GRAVEL_4', 'GRAVEL_10', 'GRAVEL_-1', 'LOG:3_1', 'LOG:3_-1', 'LOG:3_3', 'LOG:3_4', 'LOG_2_6', 'LOG_2_2', 'LOG_2_3', 'LOG_2_-1']

i want to get the name (ex. LOG_2), and the last number, (ex. -1)

example:
[‘LOG:3_4’, ‘GRAVEL_-1’, ‘LOG_2_-1’]

turns into -> [[‘LOG:3′,’4’], [‘GRAVEL’, ‘-1’], [‘LOG_2’, ‘-1’]]

edit: im using this code to get the name, but i cant get the last number

collName = x.match('(.*\_)')[0];
collName = collName.slice(0, -1);

full code rn:

function testingAll() {
  var collUnlocked = ['GRAVEL_1', 'GRAVEL_3', 'GRAVEL_2', 'GRAVEL_5', 'GRAVEL_4', 'GRAVEL_10', 'GRAVEL_-1', 'LOG:3_1', 'LOG:3_-1', 'LOG:3_3', 'LOG:3_4', 'LOG_2_6', 'LOG_2_2', 'LOG_2_3', 'LOG_2_-1']

  getCollLevelssss(collUnlocked);
}

function getCollLevelssss(collUnlocked) {
  var collName;
  var collLevel;

  collUnlocked.forEach(x => {
    collName = x.match('(.*\_)')[0];
    collName = collName.slice(0, -1);

    collLevel = x.match(''); //need regex right here

    console.log(x + ' | ' + collName + ' = ' + collLevel);
  });
}

>Solution :

In your goal, how about the following approach? This sample script uses split().

Sample script:

var collUnlocked = ['GRAVEL_1', 'GRAVEL_3', 'GRAVEL_2', 'GRAVEL_5', 'GRAVEL_4', 'GRAVEL_10', 'GRAVEL_-1', 'LOG:3_1', 'LOG:3_-1', 'LOG:3_3', 'LOG:3_4', 'LOG_2_6', 'LOG_2_2', 'LOG_2_3', 'LOG_2_-1']
var res = collUnlocked.map(e => {
  var temp = e.split("_");
  var last = temp.pop();
  return [temp.join("_"), last];
});
console.log(res)

• When this script is run, the following result is obtained.

    [ 
      [ 'GRAVEL', '1' ],
      [ 'GRAVEL', '3' ],
      [ 'GRAVEL', '2' ],
      [ 'GRAVEL', '5' ],
      [ 'GRAVEL', '4' ],
      [ 'GRAVEL', '10' ],
      [ 'GRAVEL', '-1' ],
      [ 'LOG:3', '1' ],
      [ 'LOG:3', '-1' ],
      [ 'LOG:3', '3' ],
      [ 'LOG:3', '4' ],
      [ 'LOG_2', '6' ],
      [ 'LOG_2', '2' ],
      [ 'LOG_2', '3' ],
      [ 'LOG_2', '-1' ]
    ]
  

Reference:

• split()