What do javascript keywords mean?

In JavaScript, keywords refer to those words that have specific meanings in the JavaScript language and become part of the JavaScript syntax; keywords cannot be used as variable names and function names. If keywords are used as variable names or function names name will cause JavaScript to cause compilation errors during the loading process.

The operating environment of this tutorial: Windows 10 system, JavaScript version 1.8.5, Dell G3 computer.

What do the keywords of javascript mean?

Javascript keywords (Reserved Words) refer to those words that have specific meanings in the Javascript language and become part of the Javascript grammar. Javascript keywords cannot be used as variable names and function names. Using Javascript keywords as variable names or function names will cause compilation errors in Javascript during the loading process.

Keywords are reserved and cannot be used as variable names or function names
Here is just a rough list of functions. In fact, if you have studied Java or JS and are familiar with it, you basically know all of these.

##breakExit immediately Loop to prevent any code from being repeatedly executed againcaseComplete judgment with switchcatch Cooperate with try for error judgmentcontinueExit the current loop, and allow the next loop to continue based on the control expressiondefaultWith switch, use this item when the condition does not existdeleteDelete an attributedo is used for do-while, post-test loops, that is, the exit condition is calculated after executing the code inside the loopelse Cooperate with if conditional judgment, used for conditional selection jumpfinallyUsed to prevent exceptions, it will be processed regardless of whether the exception occursforfor statement, loop statementfunctionFunction keywordifif statement is used to judge in1. Use for to traverse the object, 2. Judge a certain attribute Belongs to an objectinstanceofIs an object an instance of another objectnewCreate a new objectreturnExit from the current function and return a value from that functionswitch Multiple judgment statements to make up for ifthis always points to the object that calls the methodthrowThrow exceptiontryCooperate with catch to determine errorstypeofDetect the data type of the variablevarDeclare the variablevoidDeclaration No return valuewhileThe while judgment statement can be used with do to make pre-judgments, or used independently to make post-judgmentswithwith statement is used to set the scope of code in a specific object

Name	Function

JS reserved words

NameNameNameNameabstractbooleanbytecharclassconstdebuggerdouble##enumfloatintpackage short##throwstransientvolatileRelated recommendations: javascript learning tutorial

export	extends	final
goto	implements	import
interface	long	native
private	protected	public
static	super	synchronized

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