How to change values in array based on the same array values using javascript?

Question

i want to modify array based on its values using javascript.

what i am trying to do?

these are possible values in the array

['cd', 'md', 'Sl']

but the array could be empty or might not contain all above 3 values.

some examples could be

['cd', 'md']
[]
['cd']
['Sl']

..... so on

now when the array has 'cd' it should be replaced with 'cad'. similarly if it has 'md' it should be replaced by 'modular detection' and 'Sl' with 'Some logic'

so the expected output for array

['cd', 'md', 'Sl'] is 

['cad', 'modular detection', 'Some logic']

could someone help me do this. i am new to programming. thanks.

Brother58697 · Accepted Answer · 2022-08-09 09:47:36Z

4

We can map our key:string values in a dictionary, then map our array to that dictionary.

const dict = {
  'cd': 'cad',
  'md': 'modular detection',
  'sl': 'Some logic'
}

const input = ['cd', 'md', 'sl', 'md', 'cd', 'sl']

const output = input.map(key => dict[key])
console.log(output)

answered Aug 9, 2022 at 9:47

Brother58697

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Comments

Deepu Reghunath · Accepted Answer · 2022-08-10 04:15:22Z

1

By using replace method

const input = ['cd', 'md', 'sl', 'md', 'cd', 'sl'];

var mapObj = {
  'cd': 'cad',
  'md': 'modular detection',
  'sl': 'Some logic'
};
const output = input.toString().replace(/cd|md|sl/gi, (x) => mapObj[x]).split(",");

console.log(output);

edited Aug 10, 2022 at 4:15

answered Aug 9, 2022 at 9:56

Deepu Reghunath

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