event.preventDefault（）不适用于android chrome(event.preventDefault() not working for android chrome)

event.preventDefault（）无法在Chrome Android操作系统上运行。 而同样的行动正在对Chrome IOS起作用。 我甚至使用了event.stopPropagation（），event.stopImmediatePropagation（）。

HTML：

<input class="otherAmount" type="text"id="pVal" name="pVal" onkeydown="validatePaymentToTwoDecimal(this,event);"/>

Java脚本：

function validatePaymentToTwoDecimal(el, evt) { if(!$.isNumeric(evt.key)|| evt.key=="."){ evt.preventDefault(); evt.stopPropagation(); evt.stopImmediatePropagation(); return false; } else { return true; } }

event.preventDefault() not working on Chrome Android OS. Whereas the same action is working on chrome IOS. I even used event.stopPropagation(), event.stopImmediatePropagation().

HTML:

<input class="otherAmount" type="text"id="pVal" name="pVal" onkeydown="validatePaymentToTwoDecimal(this,event);"/>

Java Script:

function validatePaymentToTwoDecimal(el, evt) { if(!$.isNumeric(evt.key)|| evt.key=="."){ evt.preventDefault(); evt.stopPropagation(); evt.stopImmediatePropagation(); return false; } else { return true; } }

最满意答案

基于类似问题的答案 ，您应该能够这样做来过滤输入：

jQuery解决方案

$("#pVal").on( "input change paste", function filterNumericAndDecimal(event) { var formControl; formControl = $(event.target); formControl.val(formControl.val().replace(/[^0-9.]+/g, "")); });

Vanilla JavaScript解决方案

var pInput; function filterNumericAndDecimal(event) { var formControl; formControl = event.target; formControl.value = formControl.value.replace(/[^0-9.]+/g, "")); } pInput = document.getElementById("pVal"); ["input", "change", "paste"].forEach(function (eventName) { pInput.addEventListener(eventName, filterNumericAndDecimal); });

这可以通过使用正则表达式删除数字和小数点字符来实现。

Based on an answer for a similar question, you should be able to do this to filter the input:

jQuery solution

$("#pVal").on( "input change paste", function filterNumericAndDecimal(event) { var formControl; formControl = $(event.target); formControl.val(formControl.val().replace(/[^0-9.]+/g, "")); });

Vanilla JavaScript solution

var pInput; function filterNumericAndDecimal(event) { var formControl; formControl = event.target; formControl.value = formControl.value.replace(/[^0-9.]+/g, "")); } pInput = document.getElementById("pVal"); ["input", "change", "paste"].forEach(function (eventName) { pInput.addEventListener(eventName, filterNumericAndDecimal); });

This works by removing digits and decimal point characters using a regular expression.

event.preventDefault（）不适用于android chrome(event.preventDefault() not working for android chrome)

event.preventDefault（）无法在Chrome Android操作系统上运行。 而同样的行动正在对Chrome IOS起作用。 我甚至使用了event.stopPropagation（），event.stopImmediatePropagation（）。

HTML：

<input class="otherAmount" type="text"id="pVal" name="pVal" onkeydown="validatePaymentToTwoDecimal(this,event);"/>

Java脚本：

function validatePaymentToTwoDecimal(el, evt) { if(!$.isNumeric(evt.key)|| evt.key=="."){ evt.preventDefault(); evt.stopPropagation(); evt.stopImmediatePropagation(); return false; } else { return true; } }

event.preventDefault() not working on Chrome Android OS. Whereas the same action is working on chrome IOS. I even used event.stopPropagation(), event.stopImmediatePropagation().

HTML:

<input class="otherAmount" type="text"id="pVal" name="pVal" onkeydown="validatePaymentToTwoDecimal(this,event);"/>

Java Script:

function validatePaymentToTwoDecimal(el, evt) { if(!$.isNumeric(evt.key)|| evt.key=="."){ evt.preventDefault(); evt.stopPropagation(); evt.stopImmediatePropagation(); return false; } else { return true; } }

最满意答案

基于类似问题的答案 ，您应该能够这样做来过滤输入：

jQuery解决方案

$("#pVal").on( "input change paste", function filterNumericAndDecimal(event) { var formControl; formControl = $(event.target); formControl.val(formControl.val().replace(/[^0-9.]+/g, "")); });

Vanilla JavaScript解决方案

var pInput; function filterNumericAndDecimal(event) { var formControl; formControl = event.target; formControl.value = formControl.value.replace(/[^0-9.]+/g, "")); } pInput = document.getElementById("pVal"); ["input", "change", "paste"].forEach(function (eventName) { pInput.addEventListener(eventName, filterNumericAndDecimal); });

这可以通过使用正则表达式删除数字和小数点字符来实现。

Based on an answer for a similar question, you should be able to do this to filter the input:

jQuery solution

$("#pVal").on( "input change paste", function filterNumericAndDecimal(event) { var formControl; formControl = $(event.target); formControl.val(formControl.val().replace(/[^0-9.]+/g, "")); });

Vanilla JavaScript solution

var pInput; function filterNumericAndDecimal(event) { var formControl; formControl = event.target; formControl.value = formControl.value.replace(/[^0-9.]+/g, "")); } pInput = document.getElementById("pVal"); ["input", "change", "paste"].forEach(function (eventName) { pInput.addEventListener(eventName, filterNumericAndDecimal); });

This works by removing digits and decimal point characters using a regular expression.