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Design by contract using assertions or exceptions? [closed]
...words, you should use exceptions to check the preconditions for the public API functions, and whenever you get any data that are external to your system. You should use asserts for the functions or data that are internal to your system.
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Environment variable to control java.io.tmpdir?
... files, but I can't seem to find an equivalent for java's createTempFile API.
7 Answers
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Infinite scrolling with React JS
...rom 'react';
import InfiniteScroll from 'react-infinite-scroller';
const api = {
baseUrl: '/joblist'
};
class Jobs extends Component {
constructor(props) {
super(props);
this.state = {
listData: [],
hasMoreItems: true,
...
Is there a way to run Python on Android?
We are working on an S60 version and this platform has a nice Python API..
23 Answers
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Using Java 8 to convert a list of objects into a string obtained from the toString() method
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There is a collector joining in the API.
It's a static method in Collectors.
list.stream().map(Object::toString).collect(Collectors.joining(","))
Not perfect because of the necessary call of toString, but works. Different delimiters are possible.
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Why does instanceof return false for some literals?
...kind of type than objects created from within Javascript. From the Mozilla API docs:
var color1 = new String("green");
color1 instanceof String; // returns true
var color2 = "coral";
color2 instanceof String; // returns false (color2 is not a String object)
I can't find any way to construct primi...
How to create an HTTPS server in Node.js?
... work anymore. Please see the answer by pkyeck below, or go to: nodejs.org/api/https.html
– Jay Sheth
Apr 8 '14 at 19:16
2
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Java 8: How do I work with exception throwing methods in streams?
...restrictive and counter productive. are you aware that all methods, in all api are authorized to throw all flavours of runtime exceptions without you even having to know it (of course you are)? did you ban javascript for not having the concept of checked exceptions implemented? If I were your lead d...
Get month name from Date
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It is now possible to do this with the ECMAScript Internationalization API:
const date = new Date(2009, 10, 10); // 2009-11-10
const month = date.toLocaleString('default', { month: 'long' });
console.log(month);
'long' uses the full name of the month, 'short' for the short name, a...
JSP tricks to make templating easier?
...groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
...