Skip to main content

getURLParameters

Nov 19, 2022CodeCatch
Loading...

More JavaScript Posts

ESPN Web Scrape

Oct 15, 2023LeifMessinger

0 likes • 7 views

//Disclaimer: I do not condone mass web scraping of ESPN websites, and this is just theoretical code that hasn't been used.
//Scrape player stats off of https://www.espn.com/nfl/team/roster/_/name/phi/philadelphia-eagles
//Example player JS object
/*
{
"shortName": "S. Opeta",
"name": "Sua Opeta",
"href": "http://www.espn.com/nfl/player/_/id/3121009/sua-opeta",
"uid": "s:20~l:28~a:3121009",
"guid": "dec19157-e984-f981-3724-498281328c97",
"id": "3121009",
"height": "6' 4\"",
"weight": "305 lbs",
"age": 27,
"position": "G",
"jersey": "78",
"birthDate": "08/15/96",
"headshot": "https://a.espncdn.com/i/headshots/nfl/players/full/3121009.png",
"lastName": "Sua Opeta",
"experience": 4,
"college": "Weber State"
}
*/
//The page needs to be focused, so you have to put this code in a bookmarklet and click the page before clicking it. Allegedly.
navigator.clipboard.writeText(JSON.stringify(
window["__espnfitt__"].page.content.roster.groups.flatMap((group)=>{
return group.athletes.map((athlete)=>{
//We can assume all football players are above 100 lbs and below 1000 lbs.
athlete.weight = parseInt(athlete.weight.substring(0,3));
if(athlete.experience == "R") athlete.experience = 0;
else athlete.experience = parseInt(athlete.experience);
//We can assume players are at least 1 foot, or under 10 feet tall.
athlete.inches = 12 * parseInt(athlete.height.substring(0, 1)); //Add feet in inches
athlete.inches += parseInt(athlete.height.substring(2).replaceAll("\"", "").trim()); //Add remaining inches
const monthDayYear = athlete.birthDate.split("/");
athlete.birthMonth = parseInt(monthDayYear[0]);
athlete.birthDay = parseInt(monthDayYear[1]);
athlete.birthYear = parseInt(monthDayYear[2]);
//The only really useful stuff we get from this is Height, weight, left handedness, age, position, and birthday
return athlete;
});
})
, null, "\t")).then(null, ()=>{alert("That failed.")});
//Changes all the team links on this page https://www.espn.com/nfl/stats/team to the team's roster for easier scraping
$$("table > tbody > tr > td > div > div > a").forEach((elm)=>{
elm.setAttribute("href", elm.getAttribute("href").replace("team/", "team/roster/"));
});

Redux Slice

Mar 11, 2021C S

1 like • 0 views

import { createSlice } from "@reduxjs/toolkit";
const alert = createSlice({
name: "alert",
initialState: {
msg: "",
status: "",
},
reducers: {
set_alert: (state, action) => {
return {
...state,
msg: action.payload.msg,
status: action.payload.status,
};
},
clear_alert: (state, action) => {
return {
...state,
msg: "",
status: "",
};
},
},
});
export default alert.reducer;
const { set_alert, clear_alert } = alert.actions;
export const setAlert = (msg, status) => dispatch => {
dispatch(set_alert({ msg, status }));
setTimeout(() => dispatch(clear_alert()), 4000);
};
export const clearAlert = () => dispatch => {
dispatch(clear_alert());
};

find primes

Nov 19, 2022CodeCatch

0 likes • 0 views

const primes = num => {
let arr = Array.from({ length: num - 1 }).map((x, i) => i + 2),
sqroot = Math.floor(Math.sqrt(num)),
numsTillSqroot = Array.from({ length: sqroot - 1 }).map((x, i) => i + 2);
numsTillSqroot.forEach(x => (arr = arr.filter(y => y % x !== 0 || y === x)));
return arr;
};
primes(10); // [2, 3, 5, 7]

Truncate to fixed decimal

Nov 19, 2022CodeCatch

0 likes • 0 views

const toFixed = (n, fixed) => ~~(Math.pow(10, fixed) * n) / Math.pow(10, fixed);
// Examples
toFixed(25.198726354, 1); // 25.1
toFixed(25.198726354, 2); // 25.19
toFixed(25.198726354, 3); // 25.198
toFixed(25.198726354, 4); // 25.1987
toFixed(25.198726354, 5); // 25.19872
toFixed(25.198726354, 6); // 25.198726

copy to clipboard

Nov 19, 2022CodeCatch

0 likes • 0 views

const copyToClipboard = str => {
const el = document.createElement('textarea');
el.value = str;
el.setAttribute('readonly', '');
el.style.position = 'absolute';
el.style.left = '-9999px';
document.body.appendChild(el);
const selected =
document.getSelection().rangeCount > 0
? document.getSelection().getRangeAt(0)
: false;
el.select();
document.execCommand('copy');
document.body.removeChild(el);
if (selected) {
document.getSelection().removeAllRanges();
document.getSelection().addRange(selected);
}
};
copyToClipboard('Lorem ipsum'); // 'Lorem ipsum' copied to clipboard.

Temperature Converter

Nov 19, 2022CodeCatch

0 likes • 2 views

const celsiusToFahrenheit = (celsius) => celsius * 9/5 + 32;
const fahrenheitToCelsius = (fahrenheit) => (fahrenheit - 32) * 5/9;
// Examples
celsiusToFahrenheit(15); // 59
celsiusToFahrenheit(0); // 32
celsiusToFahrenheit(-20); // -4
fahrenheitToCelsius(59); // 15
fahrenheitToCelsius(32); // 0