Multiple types of trials in one block

[blueraindrops]

Hi everyone, I'm not sure if this has been asked before but I'm trying to create an experiment where there are two types of trials in a single block, and two types of blocks that alternate twice. So the general setup would be Block 1, Bock 2, Block 1, Block 2, with Block 1 containing 10 repeats of Trial A and 10 of Trial B, and Block 2 containing 10 repeats of Trial C and 10 of Trial D. Each type of trial also has a unique timeline.

I want each block to have randomized trials, and what I've tried using isn't working so far. This is what I have (after defining the stimuli of each trial):

var trial_A_timeline = {
     timeline: [fixation, trial_A_stimuli],
};

var trial_B_timeline = {
     timeline: [fixation, trial_B_stimuli],
};

var trial_C_timeline = {
     timeline: [fixation, trial_C_stimuli],
};

var trial_D_timeline = {
     timeline: [fixation, trial_D_stimuli],
};

var block_1_components = [trial_A, trial_A, trial_A, trial_A, trial_A, trial_B, trial_B, trial_B, trial_B, trial_B];
var block_1_complete = jsPsych.randomization.repeat(block_1_components, 2); 
       
var block_2_components = [trial_C, trial_C, trial_C, trial_C, trial_C, trial_D, trial_D, trial_D, trial_D, trial_D];
var block_2_complete = jsPsych.randomization.repeat(block_2_components, 2);         

var timeline = [];
timeline.push(block_1_complete, block_2_complete, block_1_complete, block_2_complete);

I'm not sure whether block_1_complete or block_2_complete is what I should be placing in the timeline, or something else? Thank you in advance!

[blueraindrops]

Hi everyone, I think I may have figured it out myself by looking through some old conversations. I added block_1_complete and block_2_complete to the timeline of a new variable and it seemed to work. For example:

var block_1_components = [trial_A, trial_A, trial_A, trial_A, trial_A, trial_B, trial_B, trial_B, trial_B, trial_B];
var block_1_complete = jsPsych.randomization.repeat(block_1_components, 2); 
var block_1_timeline = {
     timeline: block_1_complete
};
       
var block_2_components = [trial_C, trial_C, trial_C, trial_C, trial_C, trial_D, trial_D, trial_D, trial_D, trial_D];
var block_2_complete = jsPsych.randomization.repeat(block_2_components, 2); 
var block_2_timeline = {
     timeline: block_2_complete
};        

var timeline = [];
timeline.push(block_1_complete, block_2_timeline, block_1_complete, block_2_timeline);

Hopefully this helps somebody else!