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How to compare if two structs, slices or maps are equal?
... option.
func TestPerson(t *testing.T) {
type person struct {
ID int
Name string
}
p1 := person{ID: 1, Name: "john doe"}
p2 := person{ID: 2, Name: "john doe"}
println(cmp.Equal(p1, p2))
println(cmp.Equal(p1, p2, cmpopts.IgnoreFields(person{}, "ID")))
...
Move assignment operator and `if (this != &rhs)`
...re common case (due to branching and possibly cache misses).
Now when (at least) one of the operands is a directly temporary object, you can never have a self-assignment scenario. Some people advocate assuming that case and optimize the code for it so much that the code becomes suicidally stupid w...
How to use shared memory with Linux in C
...e <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
void* create_shared_memory(size_t size) {
// Our memory buffer will be readable and writable:
int protection = PROT_READ | PROT_WRITE;
// The buffer will be shared (meaning other processes can access it), but
// anonym...
jQuery Set Cursor Position in Text Area
...n you can use setCaretToPos like this:
setCaretToPos(document.getElementById("YOURINPUT"), 4);
Live example with both a textarea and an input, showing use from jQuery:
function setSelectionRange(input, selectionStart, selectionEnd) {
if (input.setSelectionRange) {
input.focus();
...
How to PUT a json object with an array using curl
...-X PUT \
-d '{"tags":["tag1","tag2"],"question":"Which band?","answers":[{"id":"a0","answer":"Answer1"},{"id":"a1","answer":"answer2"}]}' \
http://example.com/service
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Dropping Unique constraint from MySQL table
...nds to your MySQL server version for the right syntax to use near '(player_id,year,tournament)' at line 1"
– Ankur Mukherjee
Aug 15 '10 at 14:56
1
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Remove duplicated rows using dplyr
... I'm sure there is a simple solution but what if I want to get rid of both duplicate rows? I often work with metadata associated with biological samples and if I have duplicate sample IDs, I often can't be sure sure which row has the correct data. Safest bet is to dump both to avoid erron...
How to make child process die after parent exits?
... of a fork(2) and (since Linux 2.4.36 / 2.6.23) when executing a set-user-ID or set-group-ID binary.
– qrdl
Dec 10 '16 at 19:46
...
How to hide Bootstrap modal with javascript?
...e browser window, use the browser's console to try
$('#myModal').modal('hide');
If it works (and the modal closes) then you know that your close Javascript is not being sent from the server to the browser correctly.
If it doesn't work then you need to investigate further on the client what is h...
When should I use GET or POST method? What's the difference between them?
...a matter of security. The HTTP protocol defines GET-type requests as being idempotent, while POSTs may have side effects. In plain English, that means that GET is used for viewing something, without changing it, while POST is used for changing something. For example, a search page should use GET, wh...