這篇文章主要介紹了jquery.form.js清空form的方法,需要的朋友可以參考下
本段代碼摘取自jquery.form.js中，由於覺得該方法的使用性非常強，同時也可獨立拿出來使用。 該段代碼言簡意赅可以很好的作為學習參考。 代碼如下: /** * Clears the form data. Takes the following actions on the form's input fields: * - input text fields will have their 'value' property set to the empty string * - select elements will have their 'selectedIndex' property set to -1 * - checkbox and radio inputs will have their 'checked' property set to false * - inputs of type submit, button, reset, and hidden will *not* be effected * - button elements will *not* be effected */ $.fn.clearForm = function(includeHidden) { return this.each(function() { $('input,select,textarea', this).clearFields(includeHidden); //this表示設置上下文環境，有多個表單時只作用調用的表單 }); }; $.fn.clearFields = $.fn.clearInputs = function(includeHidden) { var re = /^(?:color|date|datetime|email|month|number|password|range|search|tel|text|time|url|week)$/i; // 'hidden' is not in this list return this.each(function() { var t = this.type, tag = this.tagName.toLowerCase(); if (re.test(t) || tag == 'textarea') { this.value = ''; } else if (t == 'checkbox' || t == 'radio') { this.checked = false; } else if (tag == 'select') { this.selectedIndex = -1; } else if (t == "file") { if (/MSIE/.test(navigator.userAgent)) { $(this).replaceWith($(this).clone(true)); } else { $(this).val(''); } } else if (includeHidden) { // includeHidden can be the value true, or it can be a selector string // indicating a special test; for example: // $('#myForm').clearForm('.special:hidden') // the above would clean hidden inputs that have the class of 'special' if ( (includeHidden === true && /hidden/.test(t)) || (typeof includeHidden == 'string' && $(this).is(includeHidden)) ) { this.value = ''; } } }); };