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Today, I will talk to you about how to achieve process control in JavaScrip, many people may not know much about it. In order to make you understand better, the editor has summarized the following content for you. I hope you can get something according to this article.

# sequence structure

The code executed from top to bottom is the sequential structure.

By default, the program is executed one by one from top to bottom.

Console.log (" 1"); console.log (" 2"); console.log (" 3")

# Branch structure

/ Grammar

/ if (condition) {/ / Code executed when the condition is true} else {/ / Code executed when the condition is not true} var age = 12 if (age N2? N1: N2; console.log (max)

# switch

Switch (variable) {case value 1: statement 1; break; case value 2: statement 2; break; case value 3: statement 3; break;... Default: default statement; break;}

Break can be omitted. If omitted, the code will proceed to the next case.

Switch statements use congruent operators when comparing values, so type conversions do not occur (for example, the string'1' is not equal to the numeric value 1)

# Loop structure

# do while

# for

Calculate the sum of 1-100

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