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Remove Key

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Maps - Remove Key

Removes the specified key and associated value from the target map variable.

Syntax

<map-variable>.remove(<key-name>);

where,

<map-variable> refers to the map name from where the specified key and its associated value will be removed.
<key-name> refers to the key to be removed

Example

In the following example, the key-value pair ("John", "India") available in map1 will be removed.

map1 = map();
map1.put("John", "India");
map1.put("David", "USA");
if(map1.containKey("John"))
{
      alert("John is lived in " + map1.get("John"));    
}
else
{
      alert("No Information available");
}
map1.remove("John");

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