Manwal ng Palatuntunan ng Statement ng JavaScript

JavaScript Statements

Sa HTML, ang mga statement ng JavaScript ay ang "inutusan" na ipatupad ng Web browser.

Ang katunayan ay nagsasabi sa browser na isulat sa HTML elementong may id="demo" ang "Hello Kitty":

Example

document.getElementById("demo").innerHTML = "Hello Kitty";

Try It Yourself

Para sa mas maraming kaalaman tungkol sa mga statement, basahin ang aming JavaScript Statement Tutorial.

JavaScript Statement Identifier

Ang mga statement ng JavaScript ay karaniwang nagsisimula sa identifier ng statement, na ginagamit upang i-identify ang aksyon na gagawin ng JavaScript.

Ang mga identifier ng statement ay reserved words, at hindi puwedeng gamitin bilang pangalan ng variable (o anumang bagay na ibang).

Ang sumusunod na talahanan ay naglilista ng lahat ng identifier ng statement ng JavaScript:

Statement Description
break Exit the switch or loop.
class Declare a class.
const Declare variables with a constant value.
continue If a specified condition occurs, interrupt the loop (in the loop) once and continue to the next iteration in the loop.
debugger Stop executing JavaScript and call debugging features (if any).
do ... while Execute a statement block and repeat the statement block when the condition is true.
for Loop through a code block multiple times.
for ... in Loop through the properties of an object.
for ... of Loop through the values of an iterable object.
function Declare a function.
if ... else ... else if Mark the statement block to be executed based on a condition.
let Declare variables within the scope of the brackets {}.
return Stop executing the function and return a value from the function.
switch Mark the statement block to be executed based on different conditions.
throw Throw (generate) an error.
try ... catch ... finally Mark the statement block to be executed when an error occurs in the try block, and implement error handling.
var Declare variables.
while Statement block to be executed when the condition is marked as true.