This method returns the characters in a string beginning at the specified location through the specified number of characters.
Syntax
string.substr(start[, length]);
Argument Details
- start − Location at which to start extracting characters (an integer between 0 and one less than the length of the string).
- length − The number of characters to extract.
Note − If start is negative, substr uses it as a character index from the end of the string.
Return Value
The substr() method returns the new sub-string based on given parameters.
Example
var str = "Apples are round, and apples are juicy.";
console.log("(1,2): " + str.substr(1,2));
console.log("(-2,2): " + str.substr(-2,2));
console.log("(1): " + str.substr(1));
console.log("(-20, 2): " + str.substr(-20,2));
console.log("(20, 2): " + str.substr(20,2));
On compiling, it will generate the same code in JavaScript.
Its output is as follows −
(1,2): pp (-2,2): y. (1): pples are round, and apples are juicy. (-20, 2): nd (20, 2): d
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