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takeUntil.js
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takeUntil.js
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const takeUntil = function(array, callback) {
// ...
let results = [];
for (let item of array) {
if (callback(item)) {
break;
}
results.push(item);
}
return results;
};
const eqArrays = function(array1, array2) {
if (array1.length !== array2.length) {
return false;
}
for(let i = 0; i < array1.length; i++) {
if(array1[i] !== array2[i]) {
return false;
}
}
return true;
};
const assertArraysEqual = function(array1 ,array2) {
console.log("array1 = " + array1);
console.log("array2 = " + array2);
if (eqArrays(array1, array2)) {
console.log(`✅✅✅ Assertion Passed: [${array1}] === [${array2}]`);
} else {
console.log(`🛑🛑🛑 Assertion Failed: [${array1}] !== [${array2}]`);
}
};
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);
assertArraysEqual(results1, [ 1, 2, 5, 7, 2 ]);
assertArraysEqual(results2, [ 'I\'ve', 'been', 'to', 'Hollywood' ]);
/*
[ 1, 2, 5, 7, 2 ]
--
[ 'I\'ve', 'been', 'to', 'Hollywood' ]
*/