JavaScript conditional substring manipulation

Question

JavaScript conditional substring manipulation

I am working on a function that is designed to clean strings, specifically two types of strings:

"SATISFACTION._IS1.TOUTES_SITUATIONS.current_month_note"

and

"SATISFACTION._IS1.TOUTES_SITUATIONS.note"

.

PS Just to clarify, TOUTES_SITUATIONS is a variable.

What I need to extract from these strings is "TOUTES_SITUATIONS"

Below is the code snippet I have:

const extractSituation: Function = (sentence: string): string => {
    return sentence.substring(
        sentence.lastIndexOf('1.') + 2,
        sentence.lastIndexOf('.n'),
    );
};

Currently, this code only works for the string

"SATISFACTION._IS1.TOUTES_SITUATIONS.note"

but not

"SATISFACTION._IS1.TOUTES_SITUATIONS.current_month_note"

Can you suggest a way to handle both types of strings effectively?

javascript substring

Answer 1

Answer №1

Remember, arrays in programming languages typically start at an index of 0. Here's an example of how you can extract a specific part of a sentence:

const getSegment: Function = (text: string): string => {
    return text.split('.')[2];
};

Answer 2

Remember, arrays in programming languages typically start at an index of 0. Here's an example of how you can extract a specific part of a sentence:

const getSegment: Function = (text: string): string => {
    return text.split('.')[2];
};

Answer 3

Answer №2

If you're looking to extract the text between the first instance of SATISFACTION._IS1. and the last ., a regex could do the trick:

let str1 = "SATISFACTION._IS1.TOUTES_SITUATIONS.current_month_note" 
let str2 = "SATISFACTION._IS1.TOUTES_someother.text__SITUATIONS.note" 

let regex = /^SATISFACTION._IS1\.(.*)\..*$/
console.log(str1.match(regex)[1])
console.log(str2.match(regex)[1])

Answer 4

If you're looking to extract the text between the first instance of SATISFACTION._IS1. and the last ., a regex could do the trick:

let str1 = "SATISFACTION._IS1.TOUTES_SITUATIONS.current_month_note" 
let str2 = "SATISFACTION._IS1.TOUTES_someother.text__SITUATIONS.note" 

let regex = /^SATISFACTION._IS1\.(.*)\..*$/
console.log(str1.match(regex)[1])
console.log(str2.match(regex)[1])

Answer 5

Answer №3

My understanding is:

1) In the scenario, any kind of string can be considered.

2) The 'situation' is separated by periods.

To extract the specific part of the text containing the 'situation', you can locate the beginning of the situation in the sentence, and then find the next period to isolate the 'situation' substring.

const extractSituation: Function = (sentence: string): string => {
    // Finding the start of the situation in the sentence
    var situation = sentence.substring(sentence.lastIndexOf('1.') + 2);

    // Locating the end of the situation
    return situation.substring(0, situation.indexOf('.'));
};

This method is applicable as long as each 'situation' is always introduced by the '1.' marker.

Answer 6

My understanding is:

1) In the scenario, any kind of string can be considered.

2) The 'situation' is separated by periods.

To extract the specific part of the text containing the 'situation', you can locate the beginning of the situation in the sentence, and then find the next period to isolate the 'situation' substring.

const extractSituation: Function = (sentence: string): string => {
    // Finding the start of the situation in the sentence
    var situation = sentence.substring(sentence.lastIndexOf('1.') + 2);

    // Locating the end of the situation
    return situation.substring(0, situation.indexOf('.'));
};

This method is applicable as long as each 'situation' is always introduced by the '1.' marker.

JavaScript conditional substring manipulation

Answer №1

Answer №2

Answer №3

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