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In jQuery, how do I get the value of a radio button when they all have the same name?
...your code, jQuery just looks for the first instance of an input with name q12_3, which in this case has a value of 1. You want an input with name q12_3 that is :checked.
$("#submit").click(() => {
const val = $('input[name=q12_3]:checked').val();
alert(val);
});
<script src="https...
What is the right way to POST multipart/form-data using curl?
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The following syntax fixes it for you:
curl -v -F key1=value1 -F upload=@localfilename URL
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Why does Java switch on contiguous ints appear to run faster with added cases?
...ogram logic. Part of this code involves multiplying double variables by 10 raised to arbitrary non-negative int exponent s. One fast way (edit: but not the fastest possible, see Update 2 below) to get the multiplied value is to switch on the exponent :
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How can I download HTML source in C#
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185
You can download files with the WebClient class:
using System.Net;
using (WebClient client =...
NumPy array initialization (fill with identical values)
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NumPy 1.8 introduced np.full(), which is a more direct method than empty() followed by fill() for creating an array filled with a certain value:
>>> np.full((3, 5), 7)
array([[ 7., 7., 7., 7., 7.],
[ 7., 7., ...
Import pandas dataframe column as string not int
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154
Just want to reiterate this will work in pandas >= 0.9.1:
In [2]: read_csv('sample.csv', d...
不到20个积木块，我用App Inventor 2给女儿做了个接星星小游戏 - App应用开...
...少。
需求分析
女儿的"需求"其实很简单：
1. 星星从屏幕上方不断掉落
2. 底部有一个篮子可以左右移动
3. 接住星星加分，没接住就掉血
4. 分数越高越好玩
说白了就是一个经典的"跌落物体接住"小游戏，...
How to overwrite the previous print to stdout in python?
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16 Answers
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Cast an instance of a class to a @protocol in Objective-C
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172
The correct way to do this is to do:
if ([self.myViewController conformsToProtocol:@protocol(...