How to loop through an associative array and get the key? [duplicate]
This question already has answers here: PHP foreach loop key value (4 answers) Closed 2 years ago. My associative array: $arr = array( … Read more
associative-array
Union of dict objects in Python [duplicate]
This question already has answers here: How do I merge two dictionaries in a single expression (take union of dictionaries)? (48 answers) Closed … Read more
Dynamically creating keys in a JavaScript associative array
All the documentation I’ve found so far is to update keys that are already created: arr[‘key’] = val; I have a string like … Read more
Java associative-array
How can I create and fetch associative arrays in Java like I can in PHP? For example: $arr[0][‘name’] = ‘demo’; $arr[0][‘fname’] = ‘fdemo’; … Read more
Extract subset of key-value pairs from dictionary?
I have a big dictionary object that has several key value pairs (about 16), but I am only interested in 3 of them. … Read more
In PHP, how do you change the key of an array element?
I have an associative array in the form key => value where key is a numerical value, however it is not a sequential … Read more
How to iterate over associative arrays in Bash
Based on an associative array in a Bash script, I need to iterate over it to get the key and value. #!/bin/bash declare … Read more
How do I remove objects from a JavaScript associative array?
Suppose I have this code: var myArray = new Object(); myArray[“firstname”] = “Bob”; myArray[“lastname”] = “Smith”; myArray[“age”] = 25; Now if I wanted … Read more
How to define hash tables in Bash?
What is the equivalent of Python dictionaries but in Bash (should work across OS X and Linux). 15 s 15 Bash 4 Bash … Read more
How to check if a specific key is present in a hash or not?
I want to check whether the “user” key is present or not in the session hash. How can I do this? Note that … Read more