JavaScript: Parse an URL
JavaScript Object: Exercise-12 with Solution
Write a JavaScript function to parse an URL.
Sample Solution: -
HTML Code:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>JavaScript function to parse an URL.</title>
</head>
<body>
</body>
</html>
JavaScript Code:
function parse_URL(url) {
var a = document.createElement('a');
a.href = url;
return {
source: url,
protocol: a.protocol.replace(':', ''),
host: a.hostname,
port: a.port,
query: a.search,
params: (function () {
var ret = {},
seg = a.search.replace(/^\?/, '').split('&'),
len = seg.length,
i = 0,
s;
for (; i < len; i++) {
if (!seg[i]) {
continue;
}
s = seg[i].split('=');
ret[s[0]] = s[1];
}
return ret;
})(),
file: (a.pathname.match(/\/([^\/?#]+)$/i) || [, ''])[1],
hash: a.hash.replace('#', ''),
path: a.pathname.replace(/^([^\/])/, '/$1'),
relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [, ''])[1],
segments: a.pathname.replace(/^\//, '').split('/')
};
}
console.log(parse_URL('https://github.com/pubnub/python/search?utf8=%E2%9C%93&q=python'));
Sample Output:
{"source":"https://github.com/pubnub/python/search?utf8=%E2%9C%93&q=python","protocol":"https","host":"github.com","port":"","query":"?utf8=%E2%9C%93&q=python","params":{"utf8":"%E2%9C%93","q":"python"},"file":"search","hash":"","path":"/pubnub/python/search","relative":"/pubnub/python/search?utf8=%E2%9C%93&q=python","segments":["pubnub","python","search"]}
Flowchart:
Live Demo:
See the Pen javascript-object-exercise-12 by w3resource (@w3resource) on CodePen.
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Previous: Write a JavaScript function to print all the methods in an JavaScript object.
Next: Write a JavaScript function to retrieve all the names of object's own and inherited properties.
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JavaScript: Tips of the Day
How to insert an item into an array at a specific index (JavaScript)?
What you want is the splice function on the native array object.
arr.splice(index, 0, item); will insert item into arr at the specified index (deleting 0 items first, that is, it's just an insert). In this example we will create an array and add an element to it into index 2:
var arr = []; arr[0] = "Jani"; arr[1] = "Hege"; arr[2] = "Stale"; arr[3] = "Kai Jim"; arr[4] = "Borge"; console.log(arr.join()); arr.splice(2, 0, "Lene"); console.log(arr.join());
Ref: https://bit.ly/2BXbp04
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