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TypeScript | String substr() Method

  • Last Updated : 18 Jun, 2020
Geek Week

The split() is an inbuilt function in TypeScript which is used to returns the characters in a string beginning at the specified location through the specified number of characters.

Syntax: 

string.substr(start[, length])

Parameter: This method accepts two parameter as mentioned above and described below.: 

  • start – This parameter is the location at which to start extracting characters.
  • length – This parameter is the number of characters to extract.

Return Value: This method returns the new sub-string. 
Below examples illustrate the String substr() method in TypeScript.

Example 1: 



Javascript




<script>
    // Original strings
    var str = "Geeksforgeeks - Best Platform"
  
    // use of String substr() Method
    var newstr = str.substr(0,5) 
  
    console.log(newstr);
</script>

Output: 

Geeks

Example 2: 

JavaScript




<script>
    // Original strings
    var str = "Geeksforgeeks - Best Platform"
  
    // use of String substr() Method
    var newstr = str.substr(0,5) 
    console.log(newstr);
  
    newstr = str.substr(-2,5) 
    console.log(newstr);
  
    newstr = str.substr(12,22) 
    console.log(newstr);
  
    newstr = str.substr(0,1) 
    console.log(newstr);
</script>

Output: 

Geeks
rm
s - Best Platform
G

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