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JavaScript - encode / escape URL characters
25 points
In this short article, we would like to show how in JavaScript, use encodeURIComponent() function to escape all unsafe characters in some URL.
Quick solution:
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const url = `/?message=${encodeURIComponent('How are you?')}`;2
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console.log(url); // /?message=How%20are%20you%3For:
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const message = 'Hi! This is some message...';2
const url = `https://my-domain.com/chat?message=${encodeURIComponent(message)}`;3
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console.log(url); // https://my-domain.com/chat?message=Hi!%20This%20is%20some%20message...
encodeURIComponent() function converts/escapes characters in the following way:
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Runnable examples:
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// Not escaped characters:2
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console.log(encodeURIComponent(`0123456789`)); // 01234567894
console.log(encodeURIComponent(`abcdefghijklmnopqrstuvwxyz`)); // abcdefghijklmnopqrstuvwxyz5
console.log(encodeURIComponent(`ABCDEFGHIJKLMNOPQRSTUVWXYZ`)); // ABCDEFGHIJKLMNOPQRSTUVWXYZ6
console.log(encodeURIComponent(`~!*-_.'()`)); // ~!*-_.'()7
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// Some escaped characters:9
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console.log(encodeURIComponent(`日本`)); // %E6%97%A5%E6%9C%AC11
console.log(encodeURIComponent(`Россия`)); // %D0%A0%D0%BE%D1%81%D1%81%D0%B8%D1%8F12
console.log(encodeURIComponent(`ąćęłńóśźż`)); // %C4%85%C4%87%C4%99%C5%82%C5%84%C3%B3%C5%9B%C5%BA%C5%BC13
console.log(encodeURIComponent(`@:/?#&=`)); // %40%3A%2F%3F%23%26%3D14
console.log(encodeURIComponent(`🚀🍏🍌❤️💻🙂`)); // %F0%9F%9A%80%F0%9F%8D%8F%F0%9F%8D%8C%E2%9D%A4%EF%B8%8F%F0%9F%92%BB%F0%9F%99%8215
console.log(encodeURIComponent(` \t\n`)); // %20%09%0A
