Question 1

What is the difference between encodeURI and encodeURIComponent?

Accepted Answer

encodeURI encodes a full URL preserving its structure, while encodeURIComponent encodes everything including special URL characters like / and ?.

Question 2

When should I use URL encoding?

Accepted Answer

URL encoding is needed when passing special characters in URL parameters, form data, or API requests.

Question 3

Does it handle Unicode?

Accepted Answer

Yes. Unicode characters are properly encoded using UTF-8 percent-encoding.

Question 4

What is percent encoding?

Accepted Answer

Percent encoding (URL encoding) replaces characters that are not allowed in URLs with a % followed by two hexadecimal digits representing the character's UTF-8 byte value. For example, a space becomes %20.

Question 5

Which characters need to be URL encoded?

Accepted Answer

Characters like spaces, &, =, ?, #, and non-ASCII characters must be encoded in URLs. Reserved characters like / and : may also need encoding depending on where they appear in the URL.

URL Encoder / Decoder

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