Question

127

Why won't slice work?

rated 0 times [ 129] [ 2] / answers: 1 / hits: 21504 / 10 Years ago, sun, july 27, 2014, 12:00:00

I'm new to Javascript, and I'm trying to write a chrome extension.

For the extension, if users input a string, I want the first two characters to be sliced off.

Currently, I have:

if (text.charAt(0) == '/') {

    text.slice(0,2);

    chrome.tabs.create({

        url: PrivateURL + text

    });

}

But it's not working, nothing is being sliced off. I have a feeling something is wrong with my syntax, as I'm still learning. Any help is appreciated.

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maxd

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2 Years ago

answered 10 Years ago brynn · Accepted Answer

Slice does not work in place but returns the value:

var text = Hello World;

console.log(text.slice(0,2));

// He

console.log(text);

// Hello World    (unchanged!)

You need to assign it to the variable like this:

text = text.slice(0,2);

Also, from your question, it sounds as if you're trying to remove the first two letters. That would be

var text = Hello World;

text = text.slice(2);

// will be llo World