This is a draft cheat sheet. It is a work in progress and is not finished yet.
Types of data
string |
"" |
var name = "John Doe"; |
integer |
45 |
var years = 14; |
float |
12.5 |
var price = 405.17; |
boolean |
true/false |
var registered = true; |
array |
[] |
var cars = ['Ford', 'Fiat', 'Mercedes']; |
object |
{} |
var user = {
name: "John",
lastname:"Doe"
} |
Functions
declaration |
function doSomething() {
console.log('done');
} |
declaration as expression
same as above |
var doSomething = function(){
console.log('done');
} |
anonimous function |
function(){
console.log('done');
} |
calling (executing) function |
doSomething(); |
function with parameters |
function doSomething(param1, param2) {
param1=param2 + "some text";
console.log('param2:' + param1);
} |
calling function with parameters |
doSomething('value of param1', 'value of param2'); |
calling function with parameters
sending variables |
var a = 1;
var b = 2;
doSomething(p, d); |
inside of function p will be 1 and d will be 2 |
function that returns |
function doSomething() {
var result = "result to be returned";
return result;
} |
getting result from a function
function needs to have return |
var fresult = dosomething(); |
getting result from anonimous function
function needs to have return |
var fresult = function() {
var result = "result to be returned";
return result;
} |
fresult will be "result to be returned" |
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