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takeUntil.js
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takeUntil.js
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const eqArrays = function(firstArray, secondArray) {
if (firstArray.length !== secondArray.length) {
return false;
}
for (let i = 0; i < firstArray.length; i++) {
if (firstArray[i] !== secondArray[i]) {
return false;
}
}
return true;
};
const assertArraysEqual = function(actual, expected) {
const areEqual = eqArrays(actual, expected);
if (areEqual) {
console.log(`✅✅✅ Assertion Passed: ${actual} === ${expected}`);
} else {
console.log(`🛑🛑🛑 Assertion Failed: ${actual} !== ${expected}`);
}
};
const data1 = ["mocha", "latte", "cappuccino", "earl grey", "machiatto"];
const takeUntil = function(array, callback) {
const results = [];
for (let item of array) {
if (callback(item) === true) {
break;
}
results.push(callback(item));
}
return results;
};
const results1 = takeUntil(data1, x => x === "earl grey");
console.log(results1);
const data2 = ["cold brew", "earl"];
const results2 = takeUntil(data2, x => x === "earl grey");
assertArraysEqual(results1, [false, false, false]);
assertArraysEqual(results2, [false, false]);
module.exports = takeUntil;