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// to run currently open .js file in VSCode, hit 'Run->Run Without Debugging' (Ctrl+F5)
// Node.js needs to be installed, .js file needs to be opened from folder
/*
{
"version": "2.0.0",
"tasks": [
{
"label": "Show in console",
"type": "shell",
"command": "node ${file}",
"group": {
"kind": "build",
"isDefault": true
},
"presentation": {
"reveal": "always",
"clear": true,
"echo": false,
"showReuseMessage": false
}
}
]
}
*/
//console.log(String('hello lmao wtf').split('.'));
const sumArray = (arr) => arr.reduce((prev, curr) => prev + curr);
myArr = [3, 7, 9, 12];
console.log("the sum of %O array is: %d", myArr, sumArray(myArr));
console.log("%s is %d years old", 'Jesus', 33);
console.log("%chello, %cworld%c!", "color: blue;", "font-size: 2em;", "/* no CSS rule /*");
// class-like object
function Person(name) {
this.name = name; // public data member
var _age; // private data member
function privFunc() {}
this.setAge = function(n) { _age = n; }
this.getAge = function() { return _age; } // this.age would be undefined age is 'var'ed'
}
Person.prototype.funkyName = function() { return this.name + 'ley' } // public method to all
var kyle = new Person("Kyle");
console.log(kyle.funkyName());
// convert list to array
function list() {
return Array.prototype.slice.call(arguments)
}
let list1 = list(1, 2, 3) // will get converted to [ 1, 2, 3 ]
console.log(list1);
// split string into words
var str1 = "this is a string, ayy";
var words = str1.split(/,| /).map(w => console.log(w));
// .format() implement into built-in String object
String.prototype.format = function() {
var formatted = this;
for (var arg in arguments) { //
console.log("arg is %s", arg);
formatted = formatted.replace("{" + arg + "}", arguments[arg]);
}
return formatted;
};
console.log("{0} is dead, but {1} is alive!".format("ASP", "ASP.NET"));
// .format implement into built-in String object using ES6 declarative approach
String.prototype.format = function() {
return [...arguments].reduce((p,c) => p.replace(/%s/,c), this);
};
console.log('Is that a %s or a %s?... No, it\'s %s!'.format('plane', 'bird', 'SOman'));
console.log((function(){}).constructor);
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