Capitalize first letter, get current URL

This commit is contained in:
Angelos Chalaris
2017-12-07 02:15:01 +02:00
parent 81c5f2a636
commit a9050ca220
3 changed files with 32 additions and 0 deletions

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@ -9,7 +9,9 @@
## Contents
* [Anagrams of string (with duplicates)](#anagrams-of-string-with-duplicates)
* [Capitalize first letter](#capitalize-first-letter)
* [Count occurences of a value in array](#count-occurences-of-a-value-in-array)
* [Current URL](#current-url)
* [Even or odd number](#even-or-odd-number)
* [Fibonacci array generator](#fibonacci-array-generator)
* [Greatest common divisor (GCD)](#greatest-common-divisor-gcd)
@ -42,6 +44,14 @@ var anagrams = s => {
}
```
### Capitalize first letter
Use `toUpperCase()` to capitalize first letter, `slice(1)` to get the rest of the string.
```js
var capitalize = str => str[0].toUpperCase() + str.slice(1);
```
### Count occurences of a value in array
Use `filter()` to create an array containing only the items with the specified value, count them using `length`.
@ -50,6 +60,14 @@ Use `filter()` to create an array containing only the items with the specified v
var countOccurences = (arr, value) => arr.filter(v => v === value).length;
```
### Current URL
Use `window.location.href` to get current URL.
```js
var currentUrl = _ => window.location.href;
```
### Even or odd number
Use `Math.abs()` to extend logic to negative numbers, check using the modulo (`%`) operator.

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### Capitalize first letter
Use `toUpperCase()` to capitalize first letter, `slice(1)` to get the rest of the string.
```js
var capitalize = str => str[0].toUpperCase() + str.slice(1);
```

7
snippets/current-URL.md Normal file
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### Current URL
Use `window.location.href` to get current URL.
```js
var currentUrl = _ => window.location.href;
```