delete Method (Map) (JavaScript)

Removes the specified element from a map.

Syntax

mapObj.delete(key)  

Parameters

mapObj
Required. A Map object.

key
Required. The key of the element to remove.

Property Value/Return Value

true if the element has been removed.

Example

The following example shows how to add members to a Map and then delete one of them.

var m = new Map();  
m.set(1, "black");  
m.set(2, "red");  
m.set("colors", 2);  
m.delete(1);  

m.forEach(function (item) {  
    document.write(item.toString() + "<br />");  
});  

// Output:  
// red  
// 2  

Requirements

Supported in the Internet Explorer 11 standards document mode. Also supported in Store apps (Windows 8.1 and Windows Phone 8.1). See Version Information.
Not 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. Not supported in Windows 8.