array.push(item) 返回新数组的新长度 ❌returnacc.includes(item) ? acc : acc.push(item); }, []); https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push refs https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce ...
题目:Given a sorted array, remove the duplicates in place such that each element appear onlyonceand return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example,Given input arraynums=[1,1,2], Your function should return...
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/push refs https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/Reduce https://stackoverflow.com/questions/9229645/remove-duplicate-values-from...
AI代码解释 constmapOfNicknames={};array.forEach((e)=>{constnick=e.user.nickname;// check if nick already exists in mapif(!mapOfNicknames[nick]){mapOfNicknames[nick]=e;}});// at this point, mapOfNicknames has a unique listconstuniqueArray=Object.keys(mapOfNicknames).map(k=>mapOfNick...
代码语言:txt 复制 const array = [1, 2, 3, 2, 4, 1]; const uniqueArray = Object.keys(array.reduce((accumulator, currentValue) => { accumulator[currentValue] = true; return accumulator; }, {})).map(Number); console.log(uniqueArray); // [1, 2, 3, 4] ...
2 Array.from(new FormData(form)).reduce( 3 (acc, [key, value]) => ({ 4 ...acc, 5 [key]: value 6 }), 7 {} 8 ); 9 10 // 事例11 formToObject(document.querySelector('#form')); 12 // { email: 'test@email.com', name: 'Test Name' }13...
remove useless return -module.exports.traverse = ({push}) => { - return { - ObjectExpression(path) { - } - } -}; +module.exports.traverse = ({push}) => ({ + ObjectExpression(path) { + } +});remove useless array -A[[B]]; +A[B];...
Array.from(newFormData(form)).reduce( (acc, [key, value]) => ({ ...acc, [key]: value }), {} ); // 事例 formToObject(document.querySelector('#form')); // { email: 'test@email.com', name: 'Test Name' } 13.如何从对象检索给定选择器指示的一组属性?
.lookup([])- quick find for an array of string matches .autoFill()- create type-ahead assumptions on the document Tag .tag('')- Give all terms the given tag .tagSafe('')- Only apply tag to terms if it is consistent with current tags ...
Array.from(new FormData(form)).reduce( (acc, [key, value]) => ({ ...acc, [key]: value }), {} ); // 事例 formToObject(document.querySelector('#form')); // { email: 'test@email.com', name: 'Test Name' } 13. 如何从对象检索给定选择器指示的一组属性?