How to partially retrieve characters from a JavaScript string

This article explains “ How to retrieve partial characters from a string’ ‘ in JavaScript .

How can I partially retrieve characters from a string?

There are methods to partially retrieve characters from a string, such as substring, slice, substr, and charAt.

substring, slice, substr, charAt to retrieve characters partially from a string

Use , substring, slice, substrto partially extract characters from a string .charAt

To get some characters from a string range (start to end), use the substring / slice method .

string.substring(start [,end]);

string.slice(strat [,end]);

If you want to extract by starting position and number of characters, use the substr method .

string.substr(start, length);

Used to retrieve a single character corresponding to the index of a string.

string.chartAt(index);

Below is a sample that partially extracts characters from a string.

let str = "JavaScript";
console.log(str.substring(0,4)); // "Java"
console.log(str.slice(2,6)); // "vaSc"
console.log(str.substr(3,5)); // "aScri"
console.log(str.charAt(5)); // "S"

Summary of “How to partially retrieve characters from a string”

The following is a summary of how to partially retrieve characters from a string .

It was helpful to be able to clearly explain the differences between the two.