longsangstan’s gists

longsangstan / useSave.ts

Last active May 22, 2020 00:38

react hook for post/put

	import { useState } from "react";

	import urljoin from "url-join";

	const useSave = <T>(method: "post" \| "put") => {
	const [isSaving, setIsSaving] = useState(false);
	const [error, setError] = useState("");

	const save = async (endpoint: string, body: T) => {
	setError("");

longsangstan / useGet.ts

Last active May 22, 2020 00:38

react hook for get

	import { useCallback, useEffect, useState } from "react";

	const useGet = <T>(endpoint: string) => {
	const [data, setData] = useState<T \| null>(null);
	const [isLoading, setIsLoading] = useState(false);
	const [error, setError] = useState("");

	const fetchData = useCallback(async () => {
	setError("");
	setIsLoading(true);

longsangstan / s3ListAllObjects.js

Created September 10, 2018 07:14

List all objects in s3

	const s3 = require("../aws").s3;

	/**
	* List all objects in the specified S3 folder.
	* @param {String} Bucket
	* @param {String} Prefix
	* @param {String} NextContinuationToken
	* @param {Array} PreviousContents
	* @returns {Promise<Array>} A promise containing an array of all objects in the folder
	*/

longsangstan / image.resize.in.github.flavored.markdown.md

Last active September 5, 2018 15:57 — forked from uupaa/image.resize.in.github.flavored.markdown.md

image resize in github flavored markdown.

Image source

https://gyazo.com/eb5c5741b6a9a16c692170a41a49c858.png

longsangstan / rn-fade-edge.jsx

Created February 24, 2018 09:45

	import { MaskedViewIOS, View } from "react-native";
	import LinearGradient from "react-native-linear-gradient";

	// ...

	const MaskedView = Platform.OS == "ios" ? MaskedViewIOS : View;

	render = () => {
	return (
	<MaskedView

longsangstan / rn-is-ipad.js

Created February 15, 2018 15:47

	var { height, width } = Dimensions.get("window");
	const isIpad = Platform.OS == "ios" && height / width == 4 / 3;

longsangstan / react-native-blur-modal.jsx

Created February 13, 2018 14:50

longsangstan / dynamodb-modify-all.js

Created April 28, 2017 09:16

dynamodb modify all items

	var scanAll = require("./scanAll");
	var docClient = require("../aws").docClient;
	var co = require("co");

	var modifyAll = co.wrap(function*(table, action) {
	var items = yield scanAll(table);
	var promises = [];

	for (var i = 0; i < items.length; i++) {
	items[i] = action(items[i]);

longsangstan / react-text-file-reader.js

Created April 27, 2017 03:30

A React component to read text file.

	import React from "react";


	/*
	Read a text file and out put the content.

	Example Usage:

	var myTxt = require("./myTxt.txt");
	...

longsangstan / dynamodb-query-all.js

Created April 26, 2017 07:51

dynamodb query all items

	var docClient = require("../aws").docClient;
	var co = require("co");

	var queryAll = co.wrap(function*(
	params,
	previousItems,
	lastEvaluatedKey
	) {
	var items = previousItems \|\| [];

	////

	import Modal from "react-native-modalbox";
	const { width, height } = Dimensions.get("window");

	////

	renderModal = () => {
	let marginTop = height / 2 - 20;