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charcodeat vs codepointat

Intra answered on March 9, 2022 Popularity 5/10 Helpfulness 6/10

answer charcodeat vs codepointat

charcodeat vs codepointat

Comment

/* String.charCodeAt(index) vs String.codePointAt(index) */

// Both methods return an integer representing the UTF-16 code.
'ABC'.charCodeAt(2); // → 67
'ABC'.codePointAt(2); // → 67

/* However, charCodeAt doesn't provide a full character code for 
values greater than 0xFFFF, only the first part of a surrogate pair.
This is common for emoji. */
"{horse emoji}".charCodeAt(0); // → 55357
"{horse emoji}".codePointAt(0); // → 128052

/* (Displaying emoji not currently supported
by Grepper, so use your imagination above.) */

Popularity 5/10 Helpfulness 6/10 Language javascript

Source: developer.mozilla.org

Tags: javascript

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