takeUntil.js

const eqArrays = require('./eqArrays');
const assertArraysEqual = require('./assertArraysEqual');

/*
Implement takeUntil which will keep collecting items from 
a provided array until the callback provided returns a truthy value.
*/
const takeUntil = function(array, callback) {
  
  let approvedItems = [];
  //iterate through array
  for( let item of array){

    // console.log(callback(item)); --------- this log 
    //returns a boolean value, true if passed in function arguments are met

    //if the callback value at item is false, push it to the new array
    if (!callback(item)){
      approvedItems.push(item);
    }
    //if the callback value is true, stop running and return approvedArray
    if (callback(item)){
      return approvedItems;
    }
  }
}
 module.exports = takeUntil;






 
//TEST CONDITIONS
// const data1 = [1, 2, 5, 7, 2, -1, 2, 4, 5];
// const results1 = takeUntil(data1, x => x < 0);
// console.log(results1);

// console.log('---');

// const data2 = ["I've", "been", "to", "Hollywood", ",", "I've", "been", "to", "Redwood"];
// const results2 = takeUntil(data2, x => x === ',');
// console.log(results2);


// console.log(assertArraysEqual((takeUntil(data1, x => x < 0)), [1, 2, 5, 7, 2]));
// console.log(assertArraysEqual((takeUntil(data2, x => x === ',')), ['I\'ve', 'been', 'to', 'Hollywood' ]));