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How do you safely encode a URL using JavaScript such that it can be put into a GET string?
var myUrl = "http://example.com/index.html?param=1&anotherParam=2"; var myOtherUrl = "http://example.com/index.html?url=" + myUrl; I assume that you need to encode the myUrl variable on that second line?
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The encodeURI() function encodes a URI by replacing each instance of certain characters by one, two, three, or four escape sequences representing the UTF-8 encoding of the character (will only be four escape sequences for characters composed of two "surrogate" characters).
URL encoding replaces unsafe ASCII characters with a "%" followed by two hexadecimal digits. URLs cannot contain spaces. URL encoding normally replaces a space with a plus (+) sign or with %20.
Decoding in Javascript can be achieved using decodeURI function. It takes encodeURIComponent(url) string so it can decode these characters. 2. unescape() function: This function takes a string as a single parameter and uses it to decode that string encoded by the escape() function.
A string is a series of bytes. A byte is 8 bits, each of which can be 0 or 1, so a byte can have 28 or 256 different values. Encoding is the process of squashing the graphics you see on screen, say, 世 - into actual bytes.
Check out the built-in function encodeURIComponent(str) and encodeURI(str).
In your case, this should work:
var myOtherUrl = "http://example.com/index.html?url=" + encodeURIComponent(myUrl); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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