CODEWITHSUNDEEP
javascript
user10332687
user10332687

Reputation:

Slice a string in javascript

I have a querystring:

window.location.search
?myvar=kx

How would I slice off the '?' at the beginning? For example, in python I would do either:

str = str.lstrip('?')

or

str = str[1:]

How would I do either of those in javascript?

Upvotes: 1

Views: 803

Answers (3)

M.G.
M.G.

Reputation: 44

You may use split if you want to get left or right after slicing:

var loc = "http://test.com?myVar=kx&myCar=BMW";
var res = loc.split("?");
var url = res[0]
var params = res[1]

If you want to get URL without queryString, you can try following:

var loc = window.location; // or new URL("http://test.com?myVar=kx&myCar=BMW");
var url = loc.origin;

If you want to get value of parameter in URL then you may use URLSearchParams which is quite simple and easy.

let params = new URLSearchParams(window.location.search);
let myVar = params.get('myvar');

You can also use it like this:

let params = new URL('http://test.com?myVar=kx&myCar=BMW').searchParams;
params.get('myVar'); // "kx"
params.get('myCar'); // "BMW"

If this is not what you want, you can try regex or other string operation which help you in finding what you want. You can check at w3schools

Upvotes: 2

schmitty890
schmitty890

Reputation: 175

If you are looking to specifically get everything after the beginning query, I would do something like the function below.

// function you can use:
function getQueryString(str) {
  return str.split('?')[1];
}
// use the function:
console.log(getQueryString("?myvar=kx")); // which returns 'myvar=kx'

Upvotes: 0

user10332687
user10332687

Reputation:

For the substring you can do the following:

str.substring(1)

For the lstrip you could use regex.

Upvotes: 0

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