时间格式需要添加到我的javascript中 [英] time format need to be add in my javascript

问题描述

文本框只能包含数字值...所以我在下面添加了此功能

the textbox must contain only numeric values...So i added this function given below

function nummins(evt) {
            var vlr;
            var vlr = (window.event) ? event.keyCode : evt.which;
            if ((vlr >= 48 && vlr <= 57) || vlr == 8) {
                return true;
            }
            else {
                alert("Time should be a Numeric Value");
                return false;
            }
        }

它给了我正确的输出...
但是我的问题是在此函数中，我想要12小时时间格式的代码，即文本框值必须为1到12 ....

谁能帮我....

It gives me correct output...
But my problem is in this function I want a code for 12hr time format i.e.,the textbox value must be 1 to 12....

Can anyone help me....

推荐答案

在返回true之前，添加以下代码
对该函数再加上一个参数以引用当前对象，即文本框

Before return true, add the following code
Take one more argument to this function to refer current object i.e. textbox

function nummins(evt,this) {
            var vlr;
            var vlr = (window.event) ? event.keyCode : evt.which;
            if ((vlr >= 48 && vlr <= 57) || vlr == 8) {
                 
                var num=Number(this.value);
                if(num>12)
                {
                    return false;
                }
                else
                {
                    return true;
                }
            }
            else {
                alert("Time should be a Numeric Value");
                return false;
            }
        }

it might be useful,

function nummins(evt,val) {
            var vlr;
            var vlr = (window.event) ? event.keyCode : evt.which;
            if ((vlr >= 48 && vlr <= 57) || vlr == 8) {
       if(val<13)
             {
                return true;
          }
        else
        {
          return false;

         }
            }
            else {
                alert("Time should be a Numeric Value");
                return false;
            }
        }
<input type="text" id="txt" onkeypress="return nummins(evt,this.value)"></input>

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