Saturday, April 01, 2017

Maximum allowed value for a string variable content in JavaScript

What is the maximum string content that can fit inside a Javascript variable?

I had this requirement where my Ajax script would return a sizeable amount of data for processing.

It was at this moment that I wondered if the returned value would fit inside a variable. I browsed through some of the available feedback in a Google search.

Most of them opined that there is no limit on the string variable content.

How do we check the maximum value for a string variable?

So, I thought, "let us check it in real time".

As per my test, I found out that a large string with a length of 102400 was initialized without generating any JavaScript error.

I am sure, nobody would require anything more than this inside their JavaScript variable.

Here is my statement:
I tested by initializing a JavaScript variable, in the browser console, with over 100,000 characters without an error.

My test machine was an I7 with 4GB of RAM.

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