| <h2 id="10進位">10進位</h2> | |
| <p>20 = 2*10<sup>1</sup> + 0*10<sup>0</sup> <br> | |
| 25 = 2*10<sup>1</sup> + 5*10<sup>0</sup> <br> | |
| 234 = 2*10<sup>2</sup> +3*10<sup>1</sup> + 4*10<sup>0</sup></p> | |
| <h2 id="2進位">2進位</h2> | |
| <p>1 <br> | |
| 10 <br> |
| ##10進位 | |
| 20 = 2*10<sup>1</sup> + 0*10<sup>0</sup> | |
| 25 = 2*10<sup>1</sup> + 5*10<sup>0</sup> | |
| 234 = 2*10<sup>2</sup> +3*10<sup>1</sup> + 4*10<sup>0</sup> | |
| ##2進位 | |
| 1 | |
| 10 | |
| 11 |
| #!/bin/sh | |
| SESSION_NAME="big_red" | |
| cd ~/Sites/within3/big_red | |
| tmux has-session -t ${SESSION_NAME} | |
| if [ $? != 0 ] | |
| then |
| /** | |
| * This script expects the global variables 'refresh_token' and 'firebase_api_key' to be set. 'firebase_api_key' can be found | |
| * in the Firebase console under project settings then 'Web API Key'. | |
| * 'refresh_token' as to be gathered from watching the network requests to https://securetoken.googleapis.com/v1/token from | |
| * your Firebase app, look for the formdata values | |
| * | |
| * If all the data is found it makes a request to get a new token and sets a 'auth_jwt' environment variable and updates the | |
| * global 'refresh_token'. | |
| * | |
| * Requests that need authentication should have a header with a key of 'Authentication' and value of '{{auth_jwt}}' |
| /** | |
| * This script expects the global variables 'refresh_token' and 'firebase_api_key' to be set. 'firebase_api_key' can be found | |
| * in the Firebase console under project settings then 'Web API Key'. | |
| * 'refresh_token' as to be gathered from watching the network requests to https://securetoken.googleapis.com/v1/token from | |
| * your Firebase app, look for the formdata values | |
| * | |
| * If all the data is found it makes a request to get a new token and sets a 'auth_jwt' environment variable and updates the | |
| * global 'refresh_token'. | |
| * | |
| * Requests that need authentication should have a header with a key of 'Authentication' and value of '{{auth_jwt}}' |
| //.eslintrc | |
| { | |
| "env": { | |
| "browser": true, | |
| "es6": true, | |
| "node": true, | |
| "jest": true | |
| }, | |
| "parser": "babel-eslint", |
雖然我自己的課程是前後端都有教，而且兩者的比重其實前端多一些而已，但不知道是不是因為我自己是前端工程師的關係，我的學生們都對前端比較有興趣一點，所以大多數出去以後都在找前端工程師的工作。
找後端的應該也是有但還沒有成功案例，如果你是問自學而不是我的學生的案例的話，我這邊沒有案例可以分享，可能要自己 google 找找了。
熱情吧，從小時候就知道對寫程式很有興趣，有了熱情就能夠做下去，做下去就會越來越進步越來越專業然後得到相對的報酬或是讚賞 有了讚賞跟報酬以後就會越有自信繼續走下去，大概就是這樣的一個正向循環
| function isPrime(n) { | |
| if (n === 1) return false; | |
| for (let i = 2; i < n; i++) { | |
| if (n % i === 0) { | |
| return false; | |
| } else { | |
| return true; | |
| } | |
| } | |
| } |
| /** | |
| * Example of how to get the number of followers for a Medium.com User. | |
| * | |
| * | |
| * Related links: | |
| * https://github.com/Medium/medium-api-docs/issues/30#issuecomment-227911763 | |
| * https://github.com/Medium/medium-api-docs/issues/73 | |
| */ | |
| // LODASH |
It's the reply to the question raised by @getify on his twitter:
here's a variation on the question... will JS engines exhibit much performance difference between these two loops?
for (var i = 0; i < 100000000; i++) {
// do some stuff, but not closure
}
for (let i = 0; i < 100000000; i++) {