本文介绍了使用JavaScript进行特殊字符验证的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
特殊字符< ,> ,%,'',, $ 和 ^ 。我需要进行验证检查,以便在提交时限制这些字符以及空检查。
Special characters <, >, %, '', "", $ and ^ are not allowed in a textbox. I need to put a validation check to restrict these characters on submit along with the null check.
我在一个函数中编写了整个验证代码,并在点击提交时调用它按钮,但单击时无法识别该功能。
I wrote entire validation code in a function and calling it on click of the submit button, but the function is not recognised on click.
请帮我编写一些JavaScript代码来实现此功能。
Please help me write some JavaScript code to achieve this functionality.
推荐答案更简单的方法是在javascript中使用indexOf,
A much simpler way is to use indexOf in javascript,
function isSpclChar(){ var iChars = "!@#$%^&*()+=-[]\\\';,./{}|\":<>?"; if(document.qfrm.q.value.indexOf(iChars) != -1) { alert ("The box has special characters. \nThese are not allowed.\n"); return false; } }更多推荐
使用JavaScript进行特殊字符验证
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