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local require            = require
local local_conf         = require('apisix.core.config_local').local_conf()
local http               = require('resty.http')
local core               = require('apisix.core')
local log                = core.log
local ngx_timer_at       = ngx.timer.at
local ngx_timer_every    = ngx.timer.every
local debug              = require("debug")

local default_weight

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function wrap(value){
  switch(typeof value){
  case 'number':
    return new Number(value)
  case 'string':
    return new String(value)
  case 'boolean':
    return new Boolean(value)
  case 'symbol':

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call.exec = true;
call.toc = true;



call(callme, 1);

function callme(i) {
    if (i < 0) return i;
    console.log(i);

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無關鍵字賦值、var宣告、let宣告最大的差別在於生存區域的不同。

無關鍵字賦值 這意味著全域變數的宣告，當然你在全域範圍使用var/let宣告也是全域的。只是無關鍵字可能引發意外的情況，像是你預期變數應該是函數區域的：

function printG(){
  g = 1
  console.log(`printG: `, g)
}

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;; -*- mode: emacs-lisp -*-
;; This file is loaded by Spacemacs at startup.
;; It must be stored in your home directory.

(defun dotspacemacs/layers ()
  "Configuration Layers declaration.
You should not put any user code in this function besides modifying the variable
values."
  (setq-default
   ;; Base distribution to use. This is a layer contained in the directory

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let block_keeper = document.querySelector("div.bg\\:white:nth-child(1) > div:nth-child(1) > div:nth-child(1)");

let video_region = block_keeper.firstChild;

block_keeper.style.height = "400px";
video_region.style.width = "700px";
video_region.style.position = "fixed";
video_region.style.zIndex = 1;

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class Repeatable{
    static RUN = 0;
    static BREAK = -1;
    static CONTINUE = 1;
   
    constructor(env = {}){
        this.i = 0;
        this.env = env;
        this._env = {...env};
        this.status = Repeatable.RUN;

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const HtmlWebpackPlugin = require('html-webpack-plugin');
const webpack = require('webpack');
const path = require('path');

const config = {
    mode: 'development',
    entry:{
        index: "./src/index.js",
    },
    output:{

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function on_back_click()
	local str = tostring(input_number)
	str = str:sub(0, str:len()-1)
	input_number = tonumber(str)
    if not input_number then input_number = 0 end
end

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// about atexit and on_exit: https://www.gnu.org/software/libc/manual/html_node/Cleanups-on-Exit.html

#include <stdio.h>
void byebye();
void seeyouagain();
int main()
{
    void *p = NULL;
    atexit(byebye);
    on_exit(seeyouagain, p);