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Hash String via SHA-256 in Java
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This is already implemented in the runtime libs.
public static String calc(InputStream is) {
String output;
int read;
byte[] buffer = new byte[8192];
try {
MessageDigest digest = MessageDigest.getInstance("SHA...
ReactJS state vs prop
This may be treading that line between answerable and opinionated, but I'm going back and forth as to how to structure a ReactJS component as complexity grows and could use some direction.
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Is there a difference between PhoneGap and Cordova commands?
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So Why is the doc so confusing about it? I can read $ sudo npm install -g phonegap here, where I download phone gap, and then in the associated documentation here, in the CLI section where you set up a new app, they are using cordova like so: $ cordova create hello com.ex...
What's the difference between commit() and apply() in SharedPreferences
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What happens if I write something with apply() and try to read it immediately after? Is the read guaranteed to give me the newest value? The docs say if another commit() happens after you fire apply(), that commit() will block until the apply() is persisted to disk, which makes it c...
Python Unicode Encode Error
I'm reading and parsing an Amazon XML file and while the XML file shows a ' , when I try to print it I get the following error:
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Error: No default engine was specified and no extension was provided
...ire('ejs').renderFile);
app.set('view engine', 'html');
EDIT
As you can read from view.js Express View Module
module.exports = View;
/**
* Initialize a new `View` with the given `name`.
*
* Options:
*
* - `defaultEngine` the default template engine name
* - `engines` template engine ...
WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
...、日的列表
GetSelectedYear 获取选中年份() {:.number .read-only}
获取用户选择的年份。
返回值：数字类型，选中的年份
GetSelectedMonth 获取选中月份() {:.number .read-only}
获取用户选择的月份。
返回值：...
How to unmount a busy device
...got some samba drives that are being accessed by multiple users daily. I already have code to recognize shared drives (from a SQL table) and mount them in a special directory where all users can access them.
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Rearrange columns using cut
...y commas. Selected input is written
in the same order that it is read, and is written exactly once.
It reaches field 1 first, so that is printed, followed by field 2.
Use awk instead:
awk '{ print $2 " " $1}' file.txt
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Random row from Linq to Sql
...t" with "new" with a probability of 1/n where n is the count.
So when you read the first value, you always make that the "current" value. When you read the second value, you might make that the current value (probability 1/2). When you read the third value, you might make that the current value (pr...