This is the 407th most frequent Icelandic word.
strax
Immediately.
In this sentence, 'strax' indicates that the action will happen without delay once the condition is met.
Ég fer strax þegar ég er búinn með þetta.
I will leave immediately when I finish this.
Here, 'strax' emphasizes the immediacy of the action that occurred in the past.
Hann kom strax í morgun.
He came immediately this morning.
This use of 'strax' indicates that the action will be performed without waiting or hesitation in the near future.