JavaScript: Generates all combinations of a string
JavaScript Function: Exercise-3 with Solution
Write a JavaScript function that generates all combinations of a string.
Example string: 'dog'
Expected Output: d,o,do,g,dg,og,dog
Pictorial Presentation:

Sample Solution: -
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Combination of a string</title>
</head>
<body>
</body>
</html>
JavaScript Code:
//Write a JavaScript function that generates all combinations of a string.
function substrings(str1)
{
var array1 = [];
for (var x = 0, y=1; x < str1.length; x++,y++)
{
array1[x]=str1.substring(x, y);
}
var combi = [];
var temp= "";
var slent = Math.pow(2, array1.length);
for (var i = 0; i < slent ; i++)
{
temp= "";
for (var j=0;j<array1.length;j++) {
if ((i & Math.pow(2,j))){
temp += array1[j];
}
}
if (temp !== "")
{
combi.push(temp);
}
}
console.log(combi.join("\n"));
}
substrings("dog");
Sample Output:
d o do g dg og dog
Flowchart:

Live Demo:
See the Pen JavaScript -Check whether a passed string is palindrome or not-function-ex- 2 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
Returns the difference (in days) between two dates
Example:
const tips_DiffBetweenDates = (dateInitial, dateFinal) => (dateFinal - dateInitial) / (1000 * 3600 * 24); console.log(tips_DiffBetweenDates(new Date('2020-05-13'), new Date('2020-06-05')));
Output:
23
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