The only explanation to length being undefined is if inputData is not a string. You neglected to mention what type of input you're working with, ... ... <看更多>

In this tutorial, we'll take a look at the JavaScript String Length property and how you can use this to ... ... <看更多>

JSBin: http://emberjs.jsbin.com/peposiconi/1/edit?html,js,console,output It seems that in 1.12 accessing the length property of an empty ... ... <看更多>

Inherited from String.length ... Returns the length of a String object. ... endsWith(searchString: string, endPosition?: undefined | number): boolean. ... <看更多>

There is a string variable inside the apex class and i want to find the length of that string from visualforce page using javascript. ... <看更多>

JavaScript also has null value. Besides, it has undefined value. And both null and undefined values represent empty values in JavaScript. What is undefined. ... <看更多>