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我想要的是以下幾件事情：在我的情況下，我需要一天，一個月和一年來匹配那些在SSN領域寫的。所有的數據都是用戶輸入。我的代碼看起來像這樣至今：比較多個inputes againts一個用javascript
function SSNcheck(){
if (document.getElementById('SSN').value == "" ||
\t \t document.getElementById('SSN').value.length !== 13){
\t \t \t alert('Invalid SSN: Make sure you have 13 characters');
\t \t \t return false;
\t \t }
}
function Daycheck(){
\t if (document.getElementById('Day').value.length !== 2 ||
\t \t document.getElementById('Day').value == ""){
\t \t \t alert('Invalid Day: Make sure the day is similar with the one from SSN');
\t \t \t return false;
\t \t }
}
function Monthcheck(){
\t if (document.getElementById('Month').value.length !== 2 ||
\t \t document.getElementById('Month').value == ""){
\t \t \t alert('Invalid Month: Make sure the month is similar with the one from SSN');
\t \t \t return false;
\t \t }
}
function Yearcheck(){
\t if (document.getElementById('Year').value.length !== 4 ||
\t \t document.getElementById('Year').value == ""){
\t \t \t alert('Invalid Year: Make sure the year is similar with the one from SSN');
\t \t \t return false;
\t \t }
}<body>
<h1>JavaScript Homework</h1>
<div id="SSN box">
<form method="post"
\t onsubmit="SSNcheck() || Daycheck() || Monthcheck() || Yearcheck()" >
Please insert your SSN here:
\t <input type="textbox"
\t id="SSN"
\t \t \t \t placeholder="Must contain 13 characters"
\t \t \t \t onchange="SSNcheck"
\t \t \t \t maxlength="13"
\t \t \t \t size="19"
\t \t \t \t onkeyup="this.value=this.value.replace(/[^\d]/,'')"/> <br/>
\t <p></p>
\t Day: <input type="number"
\t id="Day"
\t \t \t \t onchange="Daycheck"
\t \t \t \t maxlength="2"
\t \t \t \t size="2"
\t \t \t \t onkeyup="this.value=this.value.replace(/[^\d]/,'')"
\t \t \t \t min="1" max="31"
\t \t \t \t "/>
\t Month: <input type="number"
\t id="Month"
\t \t \t \t onchange="Monthcheck"
\t \t \t \t maxlength="2"
\t \t \t \t size="2"
\t \t \t \t onkeyup="this.value=this.value.replace(/[^\d]/,'')"
\t \t \t \t min="1" max="12"/>
\t Year: <input type="number"
\t id="Year"
\t \t \t \t onchange="Yearcheck"
\t \t \t \t maxlength="4"
\t \t \t \t size="4"
\t \t \t \t onkeyup="this.value=this.value.replace(/[^\d]/,'')"
\t \t \t \t min="1" max="2016"/>
\t <input type="submit" value="Verify">
\t </form>
</div>
</body>
</html>
你是什麼意思，‘匹配那些寫在SSN場’呢？SSN僅僅是一個13位數字 – FrankerZ
你有沒有想過先把天，月，年加在一起，所以它看起來像01012001，然後編寫一個代碼來比較它與ssn？ – Salman
在這種情況下，SSN代表社會安全號或個人身份證，我不允許把它們放在一起，用戶需要把他的SSN放入並以此爲基礎在他需要再次驗證並提交後，它與「密碼和驗證密碼」類似。 –