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In this article, the editor introduces in detail "what are the commonly used sentences in javascript", the content is detailed, the steps are clear, and the details are handled properly. I hope this article "what are the commonly used sentences in javascript" can help you solve your doubts.

Javascript statements are: 1, break statement, used to jump out of the loop; 2, catch statement, execute try statement block when there is an error in execution of catch statement block; 3, continue statement, used to skip an iteration in the loop; 4, for statement, execute code block a specified number of times, and so on.

This article operating environment: windows7 system, javascript1.8.5 version, DELL G3 computer

What are the javascript statements?

JavaScript statement identifier

A JavaScript statement usually starts with a statement identifier and executes the statement.

Statement identifiers are reserved keywords that cannot be used as variable names.

The JavaScript statement identifier (keyword) is listed below:

JavaScript statement

Break: used to jump out of the loop.

Catch: a statement block that executes a try statement block when there is an error in the execution of the catch statement block.

Continue: skip one iteration in the loop.

Do... While: executes a block of statements that continues when the conditional statement is true.

For: when the conditional statement is true, you can execute the block of code a specified number of times.

For... In: used to iterate through the properties of an array or object (loop through the properties of an array or object).

Function: define a function

If... Else: used to perform different actions based on different conditions.

Return: exit function

Switch: used to perform different actions based on different conditions.

Throw: throws (generates) an error.

Try: implements error handling and is used with catch.

Var: declare a variable.

While: executes the statement block when the conditional statement is true.

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