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Frequency distribution of elements - JavaScript
We are required to write a JavaScript function that contains the following string −
const str = 'This string will be used to calculate frequency distribution';
We need to return an object that represents the frequency distribution of various elements present in the array.
Example
Following is the code −
const str = 'This string will be used to calculate frequency
distribution';
const frequencyDistribution = str => {
const map = {};
for(let i = 0; i < str.length; i++){
map[str[i]] = (map[str[i]] || 0) + 1;
};
return map;
};
console.log(frequencyDistribution(str));Output
Following is the output in the console −
{
T: 1,
h: 1,
i: 6,
s: 4,
' ': 8,
t: 5,
r: 3,
n: 3,
g: 1,
w: 1,
l: 4,
b: 2,
e: 5,
u: 4,
d: 2,
o: 2,
c: 3,
a: 2,
f: 1,
q: 1,
y: 1
}
Updated on: 18-Sep-2020
854 Views
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