Character limit of a javascript string variable

Question

Can JavaScript string store 100K characters? I\'ve written a script where a string from PHP is passed to a variable in JavaScript. It works fine when it is cut short to almost

Answer 1

The ECMAScript Standard ECMA-262 (6th Edition, June 2015) says

6.1.4 The String Type

The String type is the set of all ordered sequences of zero or more 16-bit unsigned integer values ("elements") up to a maximum length of 2⁵³-1 elements.

So don't plan on using more than 9,007,199,254,740,991 or about 9 quadrillion characters. Of course, you should be prepared for systems which cannot allocate 18 PB chunks of memory, as this is not required for conforming ECMAScript implementations.