[英]Add object property from input.value
Say I have an object with states as properties and an html input text field. 假设我有一个状态为属性的对象和一个html输入文本字段。
<input id="input" type="text">
var foo = {
"Wisconsin" : "Madison",
"Illinois" : "Springfield"
}
How can I add properties to foo using the input text field ? 如何使用输入文本字段向foo添加属性? I tried this : 我试过这个:
foo[input.value] = input.value;
but of course it didn't work... 但当然它不起作用......
Thanks for your help 谢谢你的帮助
foo.newValue = input.value
You are dealing with an object not an array. 您正在处理的对象不是数组。
So this will result in 所以这将导致
{ "Wisconsin" : "Madison", "Illinois" : "Springfield", "newValue" : VALUE-OF-INPUT-FIELD {“Wisconsin”:“Madison”,“Illinois”:“Springfield”,“newValue”:输入值的字段
} }
To use normal javascript functions you can use: 要使用普通的javascript函数,您可以使用:
foo.input = document.getElementById('input').value;
Or you can use jQuery: 或者你可以使用jQuery:
foo.input = $('#input').val();
Input Box Value Property: http://www.w3schools.com/jsref/prop_text_value.asp 输入框值属性: http : //www.w3schools.com/jsref/prop_text_value.asp
jQuery .val(): http://api.jquery.com/val/ jQuery .val(): http ://api.jquery.com/val/
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