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When do you use map vs flatMap in RxJava?
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Observable.from(jsonFile).map(new Func1<File, String>() {
@Override public String call(File file) {
try {
return new Gson().toJson(new FileReader(file), Object.class);
} catch (FileNotFoundException e) {
// this exception is a part of rx-java
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Flexbox: center horizontally and vertically
...;
align-items: center;
justify-content: center;
}
.row {
width: auto;
border: 1px solid blue;
}
.flex-item {
background-color: tomato;
padding: 5px;
width: 20px;
height: 20px;
margin: 10px;
line-height: 20px;
color: white;
font-weight: ...
Is there an easy way to strike through text in an app widget?
I was wondering if there is an easy way to strike text within an app widget in Android. In a normal activity, it is pretty easy, using textview flags:
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How do I fix blurry text in my HTML5 canvas?
...y/blurry/stretched. I have seen a lot of other posts on why defining the width and height in CSS will cause this issue, but I define it all in javascript .
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How to do something before on submit? [closed]
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If you have a form as such:
<form id="myform">
...
</form>
You can use the following jQuery code to do something before the form is submitted:
$('#myform').submit(function() {
// DO STUFF...
return true; // return false to cancel form acti...
How do you see recent SVN log entries?
...g spits out an incredibly long, useless list on a command line. I have no idea why that is the default. If I wanted to read (or even could read) 300 entries on the terminal, I wouldn't mind typing svn log --full or something similar.
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Hide options in a select list using jQuery
I have an object with key/value pairs of options I want to hide/remove from a select list.
Neither of the following option selectors work. What am I missing?
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Lua简明教程 - 脚本技术 - 清泛IT论坛，有思想、有深度
...四个值被丢弃。函数也可以返回多个值：function getUserInfo(id)
print(id)
return "haoel", 37, "haoel@hotmail.com", "http://coolshell.cn"
end
name, age, email, website, bGay = getUserInfo()复制代码
注意：上面的示例...
Limit file format when using ?
...still, the accept attribute of <input type = "file"> can help to provide a filter in the file select dialog box of the OS. For example,
<!-- (IE 10+, Edge (EdgeHTML), Edge (Chromium), Chrome, Firefox 42+) -->
<input type="file" accept=".xls,.xlsx" />
should provide a way ...
Firefox session cookies
...hen given a cookie that has no expiration period, modern browsers will consider this cookie to be a 'session cookie', they will remove the cookie at the end of the browsing session (generally when the browser instance closes).
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