var javascript
var text = "";
var i;
for (i = 0; i < 5; i++) {
text += "The number is " + i + "<br>";
}var javascript
var text = "";
var i;
for (i = 0; i < 5; i++) {
text += "The number is " + i + "<br>";
}js var
var a;
console.log(a); // scrive in console "undefined" o "" a seconda del browser usato.
console.log('still going...'); // scrive in console "still going...".js var
var a = 'A';
var b = a;
// è come dire:
var a, b = a = 'A';var = {} js
//An array is a type of object intended to be only assigned numeric keys
var tmp = []; // or: var tmp = {}
tmp.one = 1;
JSON.stringify(tmp);
// array:
'[]'
// object:
'{"one":1}'js var
console.log(a); // Genera un ReferenceError.
console.log('still going...'); // Non verrà eseguito.js var
function x() {
y = 1; // Genera un ReferenceError in strict mode
var z = 2;
}
x();
console.log(y); // scrive "1" in console
console.log(z); // Genera un ReferenceError: z non è definita fuori dalla funzione xCopyright © 2021 Codeinu
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