D3.js | d3.set.add() Function
The set.add() function in D3.js is used to add the specified value string to the created set.
Syntax:
d3.set().add(element);
Parameters: This function accepts single parameter element which is going to be added into the created set.
Return Value: This function does not returns any values.
Below programs illustrate the d3.set.add() function in D3.js:
Example 1:
<!DOCTYPE html>
<html>
<head>
<title> d3.set.add() Function</title>
</head>
<body>
<script>
var set = d3.set()
.add( "Geeks" )
.add( "Geeks" )
.add( "gfg" );
A = set.has( "GeeksforGeeks" );
B = set.has( "Ram" );
C = set.has( "Geeks" );
console.log(A);
console.log(B);
console.log(C);
</script>
</body>
</html>
|
Output:
false
false
true
Example 2:
<!DOCTYPE html>
<html>
<head>
<title> d3.set.add() Function</title>
</head>
<body>
<script>
var set = d3.set().add( "a" ).add(1).add(123);
A = set.has( "a" );
B = set.has(123);
C = set.has(5);
console.log(A);
console.log(B);
console.log(C);
</script>
</body>
</html>
|
Output:
true
true
false
Ref: https://devdocs.io/d3~5/d3-collection#set_add
Last Updated :
28 Jun, 2019
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