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41 lines
1.4 KiB
41 lines
1.4 KiB
4 years ago
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## ALL CAPS
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### Methods
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Methods are a special kind of functions, they are functions called **from**
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another value.
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So that's what the `.` in `console.log` is for, we call the function `log`
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**from** the `console`, so it will run its actions using the console.
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Now every value types have methods in JS, for example, numbers have a special
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`toFixed` method that allows you to specify how many decimals you want when you
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convert them to string:
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```js
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let thirdOf10 = 10 / 3
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console.log(thirdOf10) // -> 3.3333333333333335 that's a lot of precision...
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console.log(thirdOf10.toFixed(3)) // -> '3.333' that's quite enough !
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console.log(thirdOf10.toFixed()) // -> with no argument, we get just '3'
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```
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So here in that second to last line we call `toFixed` from the value of the variable
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`thirdOf10`, with the argument `3`, saying that we want 3 decimal numbers in our
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string conversion.
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Since they are functions, they can also return values.
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### Instructions
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One of the value with the most methods are strings, you can do a lot of things
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with them.
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For this exercise you will have to use the methods `toUpperCase` and `toLowerCase` from the
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provided variable `message`.
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- Create a `noCaps` variable of the value of `message` but in lower case.
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- Create an `allCaps` variable of the value of `message` but in upper case.
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> Just remember ALL CAPS when you spell the man name \
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> ― MF DOOM
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