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Is it possible to implement dynamic getters/setters in JavaScript?
...r objects. Here's a simple example that turns any property values that are strings to all caps on retrieval:
"use strict";
if (typeof Proxy == "undefined") {
throw new Error("This browser doesn't support Proxy");
}
let original = {
"foo": "bar"
};
let proxy = new Proxy(original, ...
PostgreSQL: Show tables in PostgreSQL
...
Not exactly standard sql, cannot use "||" to concatenate strings on mssql
– ChRoNoN
Apr 8 '19 at 20:06
...
How to execute shell command in Javascript
...process';
/**
* Execute simple shell command (async wrapper).
* @param {String} cmd
* @return {Object} { stdout: String, stderr: String }
*/
async function sh(cmd) {
return new Promise(function (resolve, reject) {
exec(cmd, (err, stdout, stderr) => {
if (err) {
reject(err...
How to add Action Bar from support library into PreferenceActivity?
...oid:minHeight="?attr/actionBarSize"
app:navigationContentDescription="@string/abc_action_bar_up_description"
android:background="?attr/colorPrimary"
app:navigationIcon="?attr/homeAsUpIndicator"
app:title="@string/action_settings"
/>
SettingsActivity.java :
public class Settin...
What is the idiomatic way to compose a URL or URI in Java?
... official tutorial:
public class HttpClientTest {
public static void main(String[] args) throws URISyntaxException {
List<NameValuePair> qparams = new ArrayList<NameValuePair>();
qparams.add(new BasicNameValuePair("q", "httpclient"));
qparams.add(new BasicNameValuePair("btnG...
Easy way to see saved NSUserDefaults?
...)
For retrieving the keys:
// Using dump since the keys are an array of strings.
dump(Array(UserDefaults.standard.dictionaryRepresentation().keys))
For retrieving the values:
We can use dump here as well, but that will return the complete inheritance hierarchy of each element in the values arr...
What does ^M character mean in Vim?
...erally.
This expression will replace all occurrences of ^M with the empty string (i.e. nothing). I use this to get rid of ^M in files copied from Windows to Unix (Solaris, Linux, OSX).
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impr...
Blocks and yields in Ruby
...Or, we can also provide a custom sort algorithm, for instance based on the string size:
days.sort do |x,y|
x.size <=> y.size
end
=> ["monday", "friday", "tuesday", "thursday", "wednesday"]
I hope this helps you to understand it better.
BTW, if the block is optional you should cal...
Create list of single item repeated N times
...on
Immutable items
For immutable items, like None, bools, ints, floats, strings, tuples, or frozensets, you can do it like this:
[e] * 4
Note that this is best only used with immutable items (strings, tuples, frozensets, ) in the list, because they all point to the same item in the same place ...
How can I write to the console in PHP?
Is it possible write a string or log into the console?
26 Answers
26
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