associative-array

Can a string be used as array index in C? Ex: String Corresponding value "ONE" 1 "TWO" 2 "FIVE" 5 "TEN" 10 When a string in the above list is passed to the function, the function must return the corresponding value indicated above. Can this be achieved by declaring a constant array with string as index int *x; x["ONE"] = 1; x["TWO"] = 2; x["FIVE"] = 5; x["TEN"] = 5; return x["string received by the function"]; The above logic does not work as expected; is there a workaround to implement the above logic in order to have a string-indexed array? It might compile, but it won't work. It's not

I am writing a function that returns an id, name pair. I would like to do something like $a = get-name-id-pair() $a.Id $a.Name like is possible in javascript. Or at least $a = get-name-id-pair() $a["id"] $a["name"] like is possible in php. Can I do that with powershell? Doug Finke also $a = @{'foo'='bar'} or $a = @{} $a.foo = 'bar' Yes. Use the following syntax to create them $a = @{} $a["foo"] = "bar" Will add also the way to iterate through hashtable, as I was looking for the solution and did not found one... $c = @{"1"="one";"2"="two"} foreach($g in $c.Keys){write-host $c[$g]} #where key =

I've got an associative array in PHP and want to select a random key/value pair out of it. Here's what I have so far: Initialize. $locations = array(); Loops through a SQL query and adds key/val pairs: array_push($locations, "'$location_id' => '$location_name'"); Later on, I select a random index of the array: $rand = array_rand($locations); Rand is just a number. So locations[$rand] gives me something like: '1' => 'Location 1' OK great, an assoc array element. At this point, I do not know the key of this assoc array, so I've tried the following things: foreach($locations[$rand] as $loc_id =>

I'm trying to prepend an item to the beginning of an associative array. I figured the best way to do this is to use array_merge, but I'm having some odd consequences. I get the id and Name of products from a mysql database, and it gets returned as an associative array, like this (not the actual data coming back, but sample data for this question that represents what the data looks like approximately): $products = array (1 => 'Product 1', 42 => 'Product 42', 100 => 'Product 100'); this is getting sent to an html helper to create a dropdown that associates the key with the value, and the value

In python I could do something like myMap = {key: [value1, value2]} and then access the value2 using myMap[key][1] Can I do something like this in javascript? Well, you can do this: var myMap = { key: [ value1, value2 ] }; var array = myMap.key; // or myMap["key"] JavaScript doesn't have an "associative array" type, one that combines "map" behavior with array behavior like keeping track of the number of properties. Thus the common thing to do is use a plain object. In modern JavaScript now (2017), there's an explicit Map facility that allows keys to be of any type, not just strings as when