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takeUntil.js
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takeUntil.js
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const eqArrays = function (arr1, arr2) {
if (arr1.length !== arr2.length) return false;
for (let i = 0; i < arr1.length; i++) {
if (arr1[i] !== arr2[i]) return false;
}
return true;
}
const assertArraysEqual = function (actual, expected) {
if (eqArrays(actual, expected)) {
console.log(`✅✅✅ Assertion Passed: ${actual} === ${expected}`);
} else {
console.log(`🛑🛑🛑 Assertion Failed: ${actual} !== ${expected}`);
}
}
const takeUntil = function (array, callback) {
let result = [];
for (const arr of array) {
if (!callback(arr)) {
result.push(arr);
} else {
break;
}
}
return result;
}
const data1 = [1, 2, 5, 7, 2, -1, 2, 4, 5];
const results1 = takeUntil(data1, x => x < 0);
console.log(assertArraysEqual(results1, [1, 2, 5, 7, 2]));
console.log('---');
const data2 = ["I've", "been", "to", "Hollywood", ",", "I've", "been", "to", "Redwood"];
const results2 = takeUntil(data2, x => x === ',');
console.log(assertArraysEqual(results2, ["I've", "been", "to", "Hollywood"]));