表單事件.blur()、.focus()、.change()、 .select()和.submit()

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1   .blur()和.focus()處理表單焦點(diǎn)

2   .blur()和.focus()區(qū)別在于是否支持冒泡處理

3   .focus()在元素本身產(chǎn)生，.focusin()在元素包含的元素中產(chǎn)生

4   .change()監(jiān)聽(tīng)元素值的改變，要注意觸發(fā)的先后行為

5   input監(jiān)聽(tīng)value值的變化，當(dāng)有改變時(shí)，失去焦點(diǎn)后觸發(fā)change事件，對(duì)于單選按鈕和復(fù)選框，當(dāng)用戶(hù)用鼠標(biāo)做出選擇時(shí)，該事件立即觸發(fā)

6   select對(duì)于下拉選擇框，當(dāng)用戶(hù)用鼠標(biāo)做出選擇時(shí)，該事件立即觸發(fā)

7   textarea多行文本輸入框，當(dāng)有改變時(shí)，失去焦點(diǎn)后觸發(fā)change事件

8   當(dāng)textarea或文本類(lèi)型的input元素中的文本被選擇時(shí)，會(huì)發(fā)生select事件

9   .select()觸發(fā)元素的select事件，會(huì)調(diào)用執(zhí)行綁定到select事件的所有函數(shù)，包括瀏覽器的默認(rèn)行為，可以通過(guò)在某個(gè)綁定的函數(shù)中返回false來(lái)防止觸發(fā)瀏覽器的默認(rèn)行為

10   .select()事件只能用于元素和<input>元素</p><p>11   $ele.select(handler(eventObject))綁定$ele元素，每次$ele元素觸發(fā)點(diǎn)擊操作會(huì)執(zhí)行回調(diào) handler函數(shù),可以針對(duì)事件的反饋?zhàn)龊芏嗖僮?/p><p>12   $ele.select([eventData],handler(eventObject))綁定$ele元素，每次$ele元素觸發(fā)點(diǎn)擊操作會(huì)執(zhí)行回調(diào) handler函數(shù),可以接受一個(gè)數(shù)據(jù)參數(shù)，為了解決不同作用域下數(shù)據(jù)傳遞的問(wèn)題</p><p>13   .submit()監(jiān)聽(tīng)用戶(hù)提交表單時(shí)的動(dòng)作</p><p>14   $ele.submit()綁定$ele元素，不帶任何參數(shù)一般是用來(lái)指定觸發(fā)一個(gè)事件</p><p>15   $ele.submit(handler(eventObject))綁定$ele元素，每次$ele元素觸發(fā)點(diǎn)擊操作會(huì)執(zhí)行回調(diào) handler函數(shù),可以針對(duì)事件的反饋?zhàn)龊芏嗖僮?/p><p>16   $ele.submit([eventData],handler(eventObject))綁定$ele元素，每次$ele元素觸發(fā)點(diǎn)擊操作會(huì)執(zhí)行回調(diào) handler函數(shù),可以接受一個(gè)數(shù)據(jù)參數(shù)，為了解決不同作用域下數(shù)據(jù)傳遞的問(wèn)題</p><p>17   通過(guò)在<form>元素上綁定submit事件，開(kāi)發(fā)者可以監(jiān)聽(tīng)到用戶(hù)的提交表單的行為</p><p>18   觸發(fā)submit事件的行為</p><p><input type="submit"></p><p><input type="p_w_picpath"></p><p><button type="submit"></p><p>當(dāng)某些表單元素獲取焦點(diǎn)時(shí)，敲擊Enter（回車(chē)鍵）</p><p>19   form元素是有默認(rèn)提交表單的行為，如果通過(guò)submit處理的話，需要禁止瀏覽器的默認(rèn)行為</p><p>20   傳統(tǒng)的方式是調(diào)用事件對(duì)象e.preventDefault()來(lái)處理，JQuery中可以直接在函數(shù)中最后結(jié)尾return false即可</p> <br> 新聞標(biāo)題：JQuery——表單事件 <br> 文章源于：<a href="http://m.jcarcd.cn/article/ipjohs.html">http://m.jcarcd.cn/article/ipjohs.html</a> </div> </div> <div id="hjo9m3dy64kn" class="other"> <h3>其他資訊</h3> <ul> <li> <a href="/article/dsjpoio.html">論win2012服務(wù)器安全 windows server 2012 服務(wù)</a> </li><li> <a href="/article/dsjposp.html">大連騰訊云服務(wù)器租用 大連騰訊云服務(wù)器租用多少錢(qián)</a> </li><li> <a href="/article/dsjpojg.html">c語(yǔ)言函數(shù)無(wú)法被調(diào)用 為啥我寫(xiě)的函數(shù)無(wú)法調(diào)用</a> </li><li> <a href="/article/dsjposd.html">服務(wù)器安全增強(qiáng)關(guān)閉 服務(wù)器安全優(yōu)化</a> </li><li> <a href="/article/dsjposg.html">java中代碼實(shí)現(xiàn)多態(tài) java多態(tài)簡(jiǎn)單代碼</a> </li> </ul> </div> </div> </div> <footer> 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