te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>html - Restore textfield's default value when user clicks the reset button JavaScript - Stack Overflow

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    I'm trying to get the textfields to return to their default value when the user clicks the Reset button.

    All it does now when the user clicks the Reset button is replacing the user's text with ''.

    How can I do it by using pure JavaScript (no jQuery)?

    HTML:

    <p>Type the first number</p>
<input id="first" type="text" placeholder="First Number" />
<p>Type the second number</p>
<input id="second" type="text" placeholder="Second Number" />
<button id="aButton">Apply</button>
<button id="rButton">Reset</button>
<div id="add"></div>

    JAVASCRIPT:

    app.onactivated = function (args) {
        var aButton = document.getElementById("aButton");
        aButton.addEventListener("click", buttonClickHandler, false);

        var rButton = document.getElementById("rButton");
        rButton.addEventListener("click", buttonResetHandler, false);

    };

...

function buttonResetHandler(evetInfo) {

        document.getElementById("first").innerText = '';
        document.getElementById("second").innerText = '';

    }

    I'm trying to get the textfields to return to their default value when the user clicks the Reset button.

    All it does now when the user clicks the Reset button is replacing the user's text with ''.

    How can I do it by using pure JavaScript (no jQuery)?

    HTML:

    <p>Type the first number</p>
<input id="first" type="text" placeholder="First Number" />
<p>Type the second number</p>
<input id="second" type="text" placeholder="Second Number" />
<button id="aButton">Apply</button>
<button id="rButton">Reset</button>
<div id="add"></div>

    JAVASCRIPT:

    app.onactivated = function (args) {
        var aButton = document.getElementById("aButton");
        aButton.addEventListener("click", buttonClickHandler, false);

        var rButton = document.getElementById("rButton");
        rButton.addEventListener("click", buttonResetHandler, false);

    };

...

function buttonResetHandler(evetInfo) {

        document.getElementById("first").innerText = '';
        document.getElementById("second").innerText = '';

    }
    • javascript
    • html
    Share Improve this question asked May 26, 2013 at 23:19 kalpetroskalpetros 9833 gold badges16 silver badges35 bronze badges 1
    • <button type="reset">Reset</button> – Fabrício Matté Commented May 26, 2013 at 23:30
    Add a ment  | 

    4 Answers 4

    Reset to default 10

    innerText is an invalid property that is implemented in IE browsers and is used for setting/getting text content of non-form elements, if the values should be set as default, you can use defaultValue property: 

    var a = document.getElementById("first"),
    b = document.getElementById("second");
a.value = a.defaultValue;
b.value = b.defaultValue;

    If you want to reset all the form elements, you can use .reset() method of DOM HTMLFormElement object:

    document.forms["myForm"].reset();
    1. location.reload(); // reloads the page
    2. history.go(0); // deletes the history
    3. But if you need to preserve some values inside of the page then reassign the values in the function again. To reassign, write the variable (declare in let to change later) again in the function and change the textContent again.

    Replace,

    document.getElementById("first").innerText

    With,

    document.getElementById("first").value

    Example:

    <input id="txtBox" type="text" value="lama">
<input type="button" value="reset lama" onclick='document.getElementById("txtBox").value="lama2";'>

    create an init function that sets the default values for each input, then you can call that:

    function initializeInputs() {
    document.getElementById("first").value = '';
    document.getElementById("second").value= '';
}

function buttonResetHandler(e) {
    initializeInputs();
}

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