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map function for objects (instead of arrays)
...t = { 'a': 1, 'b': 2, 'c': 3 };
Object.keys(myObject).map(function(key, index) {
myObject[key] *= 2;
});
console.log(myObject);
// => { 'a': 2, 'b': 4, 'c': 6 }
But you could easily iterate over an object using for ... in:
var myObject = { 'a': 1, 'b': 2, 'c': 3 };
for (...
How to remove all event handlers from an event
...ton1.
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
button1.Click += button1_Click;
button1.Click += button1_Click2;
button2.Click += button2_Click;
}
private void button1_Click(object sender, EventArgs e) => Message...
Passing a 2D array to a C++ function
...hree ways to pass a 2D array to a function:
The parameter is a 2D array
int array[10][10];
void passFunc(int a[][10])
{
// ...
}
passFunc(array);
The parameter is an array containing pointers
int *array[10];
for(int i = 0; i < 10; i++)
array[i] = new int[10];
void passFunc(int *a[10]...
Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?
I've been hearing a lot about the PyPy project. They claim it is 6.3 times faster than the CPython interpreter on their site .
...
Check if page gets reloaded or refreshed in JavaScript
...
⚠️⚠️⚠️ window.performance.navigation.type is deprecated, pls see Илья Зеленько's answer
A better way to know that the page is actually reloaded is to use the navigator object that is supported by most modern browsers.
It...
pdftk compression option
I use pdftk to compress a pdf using the following command line
10 Answers
10
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Remove local git tags that are no longer on the remote repository
We use tags in git as part of our deployment process. From time to time, we want to clean up these tags by removing them from our remote repository.
...
Find the version of an installed npm package
How to find the version of an installed node.js/npm package ?
27 Answers
27
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How to populate/instantiate a C# array with a single value?
I know that instantiated arrays of value types in C# are automatically populated with the default value of the type (e.g. false for bool, 0 for int, etc.).
...
Where to find “Microsoft.VisualStudio.TestTools.UnitTesting” missing dll?
I am getting following error in my C# visual studio project:
12 Answers
12
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