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Does Javascript pass by reference? [duplicate]
...y value:
function replace(ref) {
ref = {}; // this code does _not_ affect the object passed
}
function update(ref) {
ref.key = 'newvalue'; // this code _does_ affect the _contents_ of the object
}
var a = { key: 'value' };
replace(a); // a still has its original value - it's un...
node.js: read a text file into an array. (Each line an item in the array.)
...teReadStream('lines.txt');
readLines(input, func);
EDIT: (in response to comment by phopkins) I think (at least in newer versions) substring does not copy data but creates a special SlicedString object (from a quick glance at the v8 source code). In any case here is a modification that avoids the ...
Powershell equivalent of bash ampersand (&) for forking/running background processes
In bash the ampersand (&) can be used to run a command in the background and return interactive control to the user before the command has finished running. Is there an equivalent method of doing this in Powershell?
...
Random String Generator Returning Same String [duplicate]
...ce of calls to Convert and Floor and NextDouble):
private readonly Random _rng = new Random();
private const string _chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
private string RandomString(int size)
{
char[] buffer = new char[size];
for (int i = 0; i < size; i++)
{
buffer[i] = _c...
micro:bit 实验05 - 用 P0 引脚读一个自己接的按钮 · App Inventor 2 中文网
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Microbit_Io_Pin_Simple
Microbit_Io_Pin_Simple1
不可见，BluetoothDevice = BluetoothLE1
...
ssh: Could not resolve hostname [hostname]: nodename nor servname provided, or not known
...rite out my router's port forwarding settings.
(ApplicationTextField)_ssh (external port)_22 (Internal Port)_22 (Protocal)_Both (To IP Address)_192.168.1.### (Enabled)_checkBox
Port forwarding settings can be different for different routers though, so look ...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
What's the usage pattern of HttpResponseMessage.EnsureSuccessStatusCode() ? It disposes of the Content of the message and throws HttpRequestException , but I fail to see how to programmatically handle it any differently than a generic Exception . For example, it doesn't include the HttpStatusCod...
Entity Framework: How to disable lazy loading for specific query?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
How to round up a number to nearest 10?
... third variable if necessary to change the rounding mode.
More info here: http://php.net/manual/en/function.round.php
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Mongoose: Get full list of users
...
Well, if you really want to return a mapping from _id to user, you could always do:
server.get('/usersList', function(req, res) {
User.find({}, function(err, users) {
var userMap = {};
users.forEach(function(user) {
userMap[user._id] = user;
});
re...