All programming languages have an implementation of ordered lists, they can be strings arrays vectors, each of which can be a static size or change dynamically, here are some common operations and their function names in some popular languages

Note: I find this as a handy reference instead of looking up the same questions on the internet over and over again.

finding

find the first index of search query

• python:

        
>>> ["foo", "bar", "baz"].index("bar")
1
        
    

• javascript

        
const array1 = [5, 12, 8, 130, 44];

const isLargeNumber = (element) => element > 13;

console.log(array1.findIndex(isLargeNumber));
// Expected output: 3
        
    

• c++

find the last index of search query in string

• javascript

        
let text = "Hello planet earth, you are a great planet.";
let result = text.lastIndexOf("planet");
// result is 36 and not 5
        
    

substrings

slicing

• python:

        
>>> b = "Hello, World!"
>>> print(b[2:5])
llo
        
    

• javascript:

        
const str = 'The quick brown fox jumps over the lazy dog.';

console.log(str.slice(31));
// Expected output: "the lazy dog."

console.log(str.slice(4, 19));
// Expected output: "quick brown fox"

console.log(str.slice(-4));
// Expected output: "dog."

console.log(str.slice(-9, -5));
// Expected output: "lazy"
        
    

contains element

• javascript:

        
const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.includes("Mango"); // returns true