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[英]JS - Change value of specific text-input-field (class has several input elements)
[英]How can i change the class of a div when input field has a specific value?
我想在輸入字段獲得特定值時更改div的背景。 例如:
<div class="vote-container">
<input class="positive" title="" name="pvote_1"
onclick="" value="+" type="submit">
</div>
因此,當輸入字段獲得“ +”值時,我需要將類“ green”添加到div“ vote-container”中,如下所示:
<div class="vote-container green">
<input class="positive" title="" name="pvote_1"
onclick="" value="+" type="submit">
</div>
這樣就可以了。
<div class="vote-container">
<input class="positive" title="" name="pvote_1"
onclick="" value="+" type="submit">
</div>
<script>
var input = document.querySelector(".positive");
if(input.value == "+"){
document.querySelector(".vote-container").classList.add("green");
}
</script>
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