如何在jquery中过滤只接受英文字母字符的文本框?

如何在jquery中过滤只接受英文字母字符的文本框?,jquery,Jquery,我有一个文本框,我想用jquery中的英文字母字符对其进行过滤。有什么帮助吗?试试: $("#mytextbox").on("keypress", function(event) { // Disallow anything not matching the regex pattern (A to Z uppercase, a to z lowercase and white space) // For more on JavaScript Regular Expression

我有一个文本框,我想用jquery中的英文字母字符对其进行过滤。有什么帮助吗?

试试:

$("#mytextbox").on("keypress", function(event) {

    // Disallow anything not matching the regex pattern (A to Z uppercase, a to z lowercase and white space)
    // For more on JavaScript Regular Expressions, look here: https://developer.mozilla.org/en-US/docs/JavaScript/Guide/Regular_Expressions
    var englishAlphabetAndWhiteSpace = /[A-Za-z ]/g;

    // Retrieving the key from the char code passed in event.which
    // For more info on even.which, look here: http://stackoverflow.com/q/3050984/114029
    var key = String.fromCharCode(event.which);

    //alert(event.keyCode);

    // For the keyCodes, look here: http://stackoverflow.com/a/3781360/114029
    // keyCode == 8  is backspace
    // keyCode == 37 is left arrow
    // keyCode == 39 is right arrow
    // englishAlphabetAndWhiteSpace.test(key) does the matching, that is, test the key just typed against the regex pattern
    if (event.keyCode == 8 || event.keyCode == 37 || event.keyCode == 39 || englishAlphabetAndWhiteSpace.test(key)) {
        return true;
    }

    // If we got this far, just return false because a disallowed key was typed.
    return false;
});

$('#mytextbox').on("paste",function(e)
{
    e.preventDefault();
});
尝试:

$('.acceptalpha').bind('keyup blur',function()
{ 
var thisttext=$(本);
thistText.val(thistText.val().replace(/[^a-z]/g',);
});

$('.acceptalpha').bind('keyup blur',function()
{ 
var thisttext=$(本);
thistText.val(thistText.val().replace(/[^a-z]/g',);
});


可能重复@ShabbirDhangot,这是不同的little@MohsenZahedi您尝试的源代码在哪里?可能是@ShabbirDhangot的副本,它是不同的little@MohsenZahedi您尝试的源代码在哪里?@Mohsend如果成功,您可以将其标记为已完成you@Mohsend您可以将其标记为已完成,如果它已在你