How to push both value and key into PHP array
Nope, there is no array_push() equivalent for associative arrays because there is no way determine the next key. You’ll have to use
arrays
C# function to return array
You’re trying to return variable Labels of type ArtworkData instead of array, therefore this needs to be in the method signature as its return type. You need to modify your code as such: Array[] is actually an array of Array, if that makes sense.
creating array without declaring the size – java
Using Java.util.ArrayList or LinkedList is the usual way of doing this. With arrays that’s not possible as I know. Example:
Checking if a key exists in a JavaScript object?
Checking for undefined-ness is not an accurate way of testing whether a key exists. What if the key exists but the value is actually undefined? Expand snippet You should instead use the in operator: Expand snippet If you want to check if a key doesn’t exist, remember to use parenthesis: Expand snippet Or, if you … Read more
Find a value in an array of objects in Javascript [duplicate]
You can loop over the array and test for that property:
javascript push multidimensional array
Arrays must have zero based integer indexes in JavaScript. So: Or maybe you want to use objects (which are associative arrays): which is equivalent to: It’s a really fundamental and crucial difference between JavaScript arrays and JavaScript objects (which are associative arrays) that every JavaScript developer must understand.
How can I delete one element from an array by value
I think I’ve figured it out:
Can I put a tuple into an array in python?
One thing to keep in mind is that a tuple is immutable. This means that once it’s created, you can’t modify it in-place. A list, on the other hand, is mutable — meaning you can add elements, remove elements, and change elements in-place. A list has extra overhead, so only use a list if you need to modify … Read more
Proper way to pass dynamic arrays to other functions
Actually, the two first ideas pass the array by address and the third passes the array by reference. You can devise a little test to check this: The output of this test is If a parameter is passed by value, it cannot be modified inside a function because the modifications will stay in the scope of the function. In … Read more
How do I check if a string contains a certain character?
By using strchr(), like this for example: Output: exclamationCheck = 1 If you are looking for a laconic one liner, then you could follow @melpomene’s approach: If you are not allowed to use methods from the C String Library, then, as @SomeProgrammerDude suggested, you could simply iterate over the string, and if any character is the … Read more