Javascript 获取所有按钮标签类型

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时间:2020-08-23 22:18:36  来源:igfitidea点击:

Get all the button tag types

javascripttags

提问by user782400

Is there a way to get all the button tag and their types on a particular page using javascript?

有没有办法使用javascript获取特定页面上的所有按钮标签及其类型?

回答by Quentin

var buttons = document.getElementsByTagName('button');
for (var i = 0; i < buttons.length; i++) {
    var button = buttons[i];
    var type = button.getAttribute('type') || 'submit'; // Submit is the default
    // ...
}

回答by Jorgesys

I tried with the original answer with no success, so i use this :

我尝试了原始答案但没有成功,所以我使用了这个:

var elements = document.querySelectorAll("input[type=button]");  

Example:

例子:

var elements = document.querySelectorAll("input[type=button]");   

for(var i = 0, len = elements.length; i < len; i++) {   
  console.log("Button: " +  elements[i].id);
}
 
    <input type="button" id="alfa" value="alfa">
    <input type="button" id="beta" value="beta">
    <input type="button" id="gamma" value="gamma">
    <input type="button" id="omega" value="omega">