JavaScript: Create a Zerofilled value with optional +, - sign
JavaScript String: Exercise-36 with Solution
Write a JavaScript function to create a Zerofilled value with optional +, - sign.
Test Data:
console.log(zeroFill(120, 5, '-'));
"+00120"
console.log(zeroFill(29, 4));
"0029"
Sample Solution:-
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript function to create a Zerofilled value with optional +, - sign.</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function zeroFill(number, width, osign) {
var num = '' + Math.abs(number),
zerosw = width - num.length,
sign = number >= 0;
return (sign ? (osign ? '+' : '') : '-') +
Math.pow(10, Math.max(0, zerosw)).toString().substr(1) + num;
}
console.log(zeroFill(120, 5, '-'));
console.log(zeroFill(29, 4));
Sample Output:
+00120 0029
Flowchart:

Live Demo:
See the Pen JavaScript Create a Zerofilled value with optional +, - sign-string-ex-36 by w3resource (@w3resource) on CodePen.
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JavaScript: Tips of the Day
How to check whether a string contains a substring in JavaScript?
ECMAScript 6 introduced String.prototype.includes:
const string = "foo"; const substring = "oo"; console.log(string.includes(substring));
includes doesn't have Internet Explorer support, though. In ECMAScript 5 or older environments, use String.prototype.indexOf, which returns -1 when a substring cannot be found:
var string = "foo"; var substring = "oo"; console.log(string.indexOf(substring) !== -1);
Ref: https://bit.ly/3fFFgZv
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