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flatten.js
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flatten.js
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const eqArrays = function (array1, array2){
if (array1.length !== array2.length) {
return false;
}
for (let i = 0; i < array2.length; i++) {
if (array1[i] !== array2[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 flatten = function (array){
//If its not an array just push
flattenedArray = [];
for(let i = 0; i < array.length; i++){
if (Array.isArray(array[i]) !== true ){
flattenedArray.push(array[i]);
} else {
console.log('is array', array[i]);
flattenedArray = flattenedArray.concat(array[i]);
}
}
return flattenedArray;
}
console.log(flatten([1, 2, [3, 4], 5, [6]])) // => [1, 2, 3, 4, 5, 6]