如何使用 Javascript 验证带有小时和分钟的输入文本
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How to validate with Javascript an Input text with Hours and Minutes
提问by systempuntoout
I have to build an HTML Form with an Input text field for Hours and Minutes.
Something like:
我必须构建一个带有小时和分钟输入文本字段的 HTML 表单。
就像是:
Name :[Foo]
Surname :[Bar]
Task :[Spam]
Hours Minutes :[00:15] <-- Input text.
姓名:[Foo]
姓氏:[Bar]
任务:[垃圾邮件]
小时分钟:[00:15] <-- 输入文本。
How can I help/validate/force user to compile Hours and Minutes values in the only allowed HH:mmformat using Javascript? *
我如何帮助/验证/强制用户使用 Javascript以唯一允许的HH:mm格式编译小时和分钟值?*
Valid time range: from 00:00to 23:59
有效时间范围:从00:00到23:59
* I can't use Jquery and of course I will double check the submitted value server side
* 我不能使用 Jquery,当然我会仔细检查提交的值服务器端
回答by dominicbri7
Either with the following regular expression :
使用以下正则表达式:
^([0-1]?[0-9]|2[0-4]):([0-5][0-9])(:[0-5][0-9])?$
Or by hand, but I strongly suggest the RegExp :) A simple example :
或者手动,但我强烈建议使用 RegExp :) 一个简单的例子:
<SCRIPT TYPE="text/JavaScript">
function validateHhMm(inputField) {
var isValid = /^([0-1]?[0-9]|2[0-4]):([0-5][0-9])(:[0-5][0-9])?$/.test(inputField.value);
if (isValid) {
inputField.style.backgroundColor = '#bfa';
} else {
inputField.style.backgroundColor = '#fba';
}
return isValid;
}
</SCRIPT>
<FORM METHOD="POST">
<input type="text" onchange="validateHhMm(this);" />
</FORM>
回答by TRT 1968
The RegExp from the first answer doesn't match the OP's query correctly.
第一个答案中的 RegExp 与 OP 的查询不正确。
^([0-1]?[0-9]|2[0-4]):([0-5][0-9])(:[0-5][0-9])?$
Should be
应该
^([0-1][0-9]|2[0-3]):([0-5][0-9])$
Matches 00-19 or 20-23 : 00-59
匹配 00-19 或 20-23 : 00-59
OP requested validation of HH:MM in the range 00:00 - 23:59
OP 请求在 00:00 - 23:59 范围内验证 HH:MM
No seconds. 24:00 should not be valid. Double digits for input of hour and minute.
没有秒。24:00 应该无效。输入小时和分钟的两位数。
回答by Mouadh
<HTML>
<Head>
<script language="javascript">
function validateTime(obj)
{
var timeValue = obj.value;
if(timeValue == "" || timeValue.indexOf(":")<0)
{
alert("Invalid Time format");
return false;
}
else
{
var sHours = timeValue.split(':')[0];
var sMinutes = timeValue.split(':')[1];
if(sHours == "" || isNaN(sHours) || parseInt(sHours)>23)
{
alert("Invalid Time format");
return false;
}
else if(parseInt(sHours) == 0)
sHours = "00";
else if (sHours <10)
sHours = "0"+sHours;
if(sMinutes == "" || isNaN(sMinutes) || parseInt(sMinutes)>59)
{
alert("Invalid Time format");
return false;
}
else if(parseInt(sMinutes) == 0)
sMinutes = "00";
else if (sMinutes <10)
sMinutes = "0"+sMinutes;
obj.value = sHours + ":" + sMinutes;
}
return true;
}
</script>
</Head>
<Body>
<input type="text" onblur="validateTime(this)">
</Body>
</HTML>
回答by KooiInc
How about
怎么样
function validTime(inputStr) {
if (!inputStr || inputStr.length<1) {return false;}
var time = inputStr.split(':');
return time.length === 2
&& parseInt(time[0],10)>=0
&& parseInt(time[0],10)<=23
&& parseInt(time[1],10)>=0
&& parseInt(time[1],10)<=59;
}
回答by VeroLom
You can use something like jQuery.maskedit
你可以使用类似 jQuery.maskedit 的东西
回答by Ali Hallaji
You can use this function to check for time format:
您可以使用此函数检查时间格式:
function validateTime (time) {
const timeReg = /^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]$/
return time.match(timeReg)
}
If you want to have just hour and minute please replace timeReg
with this:
如果您只想使用小时和分钟,请替换timeReg
为:
const timeReg = /^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]$/
And this one for the date format:
这是日期格式的:
function validateDate (date) {
try {
new Date(date).toISOString()
return true
} catch (e) {
return false
}
}
回答by Kkkk Kkkk
With moment.js the way is:
使用 moment.js 的方法是:
const time = '23:59'
moment(time, 'HH:mm', true).isValid()
回答by Lomi Faith
might not be the best but this works for me. i am returning false if there is no error in this case. checks for both format and values.
可能不是最好的,但这对我有用。如果在这种情况下没有错误,我将返回 false。检查格式和值。
if (value.substr(2,1) === ':') {
if (!value.match(/^\d\d:\d\d/)) {
return "Invalid Format";
}
else if (parseInt(value.substr(0,2)) >= 24 || parseInt(value.substr(3,2)) >= 60) {
return "Invalid Format";
}
else {
return false;
}
}
else {
return "Invalid Format";
}