javascript - 按提供的输入过滤值

Question

当用户提供的输入使用可以是单词或数字(均为字符串)的值过滤列表时，我尝试实现这种情况。

下面都是描述的案例，不知道有没有办法把这三个案例的验证合二为一。非常感谢好的建议:)

Case 1: 1 === 1
Case 2: +1 === +1
Case 3: (+1) ==== (+1)

const form = document.querySelector('input')

form.addEventListener('change', () => {
  console.clear()
  filterValues()
})

const values = {
  first: {code: "1", name: "one"},
  second: {code: "2", name: "two"},
  third: {code: "3", name: "three"},
  four: {code: "4", name: "four"},
  five: {code: "5", name: "five"}
}

function filterValues() {
  Object.keys(values).forEach(value => {
    const code = values[value].code
    const name = values[value].name
    const input = form.value
    
    const inputMatchesCode = code.indexOf(input.toLocaleLowerCase()) === 0
    
    /* Code case nr 1 */
    const inputMatchesName = name.indexOf(input.toLocaleLowerCase()) === 0
    
    /* Code case nr 2 */
    const dialingCode = `+${code}`
    const inputMatchesDialingCode = dialingCode.indexOf(input.toLocaleLowerCase()) === 0
    
    /* Code case nr 3 */
    const fullDialingCode = `(+${code})`
    const inputMatchesFullDialingCode = fullDialingCode.indexOf(input.toLocaleLowerCase()) === 0
    
    if (inputMatchesCode || inputMatchesName || inputMatchesDialingCode || inputMatchesFullDialingCode) {
      console.log(value)
    }
  })
}

input {
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 3px;
}

<input type="text" />

---

Answer 1

如果您正在尝试匹配数字(即:1)并且希望变体与您创建的字符串(即:“(+1)”)匹配 - 而不是尝试匹配所有变体 - 为什么不只需删除辅助字符并仅比较数字 - 即(1 === 1 给出“第一”)。这样您就不必考虑“(”、“+”或“)”字符 - 如果数字本身匹配，您就可以给出预期的结果。

我使用了您的代码，但删除了不同情况背后的备用字符和逻辑。

const form = document.querySelector('input')

form.addEventListener('change', () => {
  console.clear()
  filterValues()
})

const values = {
  first: {code: "1", name: "one"},
  second: {code: "2", name: "two"},
  third: {code: "3", name: "three"},
  four: {code: "4", name: "four"},
  five: {code: "5", name: "five"}
}

function filterValues() {
  Object.keys(values).forEach(value => {
    const code = values[value].code
    const name = values[value].name
    const input = form.value.replace(/[\(\+\)]/g,'');
    
    const inputMatchesCode = code.indexOf(input.toLocaleLowerCase()) === 0

    const inputMatchesName = name.indexOf(input.toLocaleLowerCase()) === 0
    

    if (inputMatchesCode || inputMatchesName) {
      console.log(value)
    }
  })
}

input {
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 3px;
}

<input type="text" />