JS: String.prototype

What is string.prototype

Purpose of String.prototype is to provide methods and properties useful for all string objects.

Properties

• JS: String.prototype.constructor
• JS: String.prototype.length

substring

• JS: String.prototype.slice
• JS: String.prototype.substring 👎
• JS: String.prototype.substr

Get character and Unicode

• JS: String.prototype.at (get char at index) ♠
• JS: String.prototype.charAt (get char at index) 👎
• JS: String.prototype.charCodeAt (Char to ID)
• JS: String.prototype.codePointAt (Char to ID)

join, trim, pad

• JS: String.prototype.concat
• JS: String.prototype.repeat
• JS: String.prototype.trim
• JS: String.prototype.trimStart
• JS: String.prototype.trimEnd
• JS: String.prototype.padStart
• JS: String.prototype.padEnd

Search string

• JS: String.prototype.indexOf
• JS: String.prototype.lastIndexOf
• JS: String.prototype.includes
• JS: String.prototype.startsWith
• JS: String.prototype.endsWith

Search / replace with regex

• JS: String.prototype.search
• JS: String.prototype.match
• JS: String.prototype.matchAll
• JS: String.prototype.replace

Convert to array

• JS: String.prototype.split

Convert letter case

• JS: String .prototype .toLowerCase .toUpperCase .toLocaleLowerCase .toLocaleUpperCase
• String.prototype.toUpperCase
• String.prototype.toLocaleLowerCase
• String.prototype.toLocaleUpperCase

misc

String.prototype.toString

Return the string itself.

String.prototype.valueOf

Return the string itself.

String.prototype.localeCompare(str)

Return negative, 0, or positive integer, by comparing this-binding with str, in a locale aware manner.

String.prototype.normalize(form)

normalize a string according to Unicode Standard Annex #15 Unicode Normalization Forms.

String.prototype[Symbol.iterator]

return the Iterator Object.