toLowerCase Method (JavaScript)

Converts all the alphabetic characters in a string to lowercase.

Syntax


      strVariable.toLowerCase()  
"String Literal".toLowerCase()   

Remarks

The toLowerCase method has no effect on non-alphabetic characters.

The following example demonstrates the effects of the toLowerCase method:

var str1 = "This is a STRING.";  
var str2 = str1. toLowerCase();  
document.write(str2);  

// Output: this is a string.  

Requirements

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

Applies To: String Object

See Also

toLocaleLowerCase Method (String)
toUpperCase Method (String)