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takeUntil.js
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takeUntil.js
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const eqArrays = function (arrayOne, arrayTwo) {
//check if arrays are same length
if (arrayOne.length !== arrayTwo.length) {
return false;
}
for (let i = 0; i < arrayOne.length; i++) {
if (arrayOne[i] !== arrayTwo[i]) {
return false;
}
}
return true;
};
const assertArraysEqual = function (arrayOne, arrayTwo) {
if (eqArrays(arrayOne, arrayTwo) !== true) {
return (`😡😡😡😡😡 Assertion Failed: ${arrayOne} !== ${arrayTwo}`)
}
return (`🥳🥳🥳🥳🥳 Assertion Passed: ${arrayOne} === ${arrayTwo}`)
};
const takeUntil = function (array, callback) {
let newArray = []
for (const element of array) {
if (callback(element)) {
break;
}
newArray.push(element)
}
return newArray;
}
//function should return a slice of the array with elements taken from the beginning
//once the callback function returns true, the loop should stop.
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);