spelling fixes

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Jimmy Lee 2017-06-12 21:15:35 -05:00 committed by GitHub
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# Data types # Data types
A variable in JavaScript can contain any data. A variable can at one moment be a string and later recieve a numeric value: A variable in JavaScript can contain any data. A variable can at one moment be a string and later receive a numeric value:
```js ```js
// no error // no error
@ -8,7 +8,7 @@ let message = "hello";
message = 123456; message = 123456;
``` ```
Programming languages that allow such thing are called "dynamically typed", meaning that there are data types, but variables are not bound to any of them. Programming languages that allow such things are called "dynamically typed", meaning that there are data types, but variables are not bound to any of them.
There are 7 basic data types in JavaScript. Here we'll study the basics, and in next chapters we'll talk about each of them in detail. There are 7 basic data types in JavaScript. Here we'll study the basics, and in next chapters we'll talk about each of them in detail.