switch(yourUseCase) {case'large_number_of_conditions':case'single_variable_evaluation':case'multiple_discrete_values':console.log('Consider using a switch statement.');break;case'complex_conditions':case'range_based_conditions':case'non_constant_cases':console.l...
Sometimes, we may want multiple case values to trigger the same block of code. For this, we can use multiple cases with a single block. Let's look at the example below to understand this clearly. // Program to categorize ageletage =19;switch(age) {// when age is 13, 14, or 15ca...
JavaScript Switch Case Statement - Learn how to use the Switch Case statement in JavaScript to simplify complex conditional statements. Explore examples and best practices.
switch(expression) {case{value1}:// <-- Your Code to execute -->break// optionalcase{value2}:// <-- Your Code to execute -->break// optionaldefault:// optional// <-- Code that executes when no values match-->}constsuperhero='Spider-Man';switch(superhero) {case'Batman':console.lo...
In this tutorial you will learn how to use the switch...case statement to test or evaluate an expression with different values in JavaScript.Using the Switch...Case StatementThe switch..case statement is an alternative to the if...else if...else statement, which does almost the same thing...
switch(expression) { casex: // code block break; casey: // code block break; default: //code block } This is how it works: The switch expression is evaluated once. The value of the expression is compared with the values of each case. ...
Multi-case - chained operations This is an example of a multiple-operation sequential switch statement, where, depending on the provided integer, you can receive different output. This shows you that it will traverse in the order that you put the case statements, and it does not have to be...
如果作为一个函数(不带有运算符 new)调用时,Boolean() 只将把它的参数转换成一个原始的布尔值,并且返回这个值,如果省略 value 参数,或者设置为0、-0、null、""、false、undefined或NaN,则该对象设置为 false。否则设置为 true(即使 value 参数是字符串false)。
Accessing properties using .propertyAccessing properties using [property]Looping through propertiesLooping through property valuesAccess nested JSON objectsModify values using the dot notationModify values using the bracket notationDelete object properties ...
(switchCase.js) Loops :: 'while' Loop Differences between 'if-else' conditional and 'while' loop. (whileLoopIntro.js) How to stop an infinite loop inside a 'while' loop through the loop variable changing (increment/decrement). (whileLoopIntro.js) Iteration of a loop. (whileLoopIntro....