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Editor to share with you how to abbreviate switch code blocks in js, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Switch Code Block (ifelse Code Block) shorthand

We can save the condition in the key-value object, and then we can use it according to the condition.

/ / Badswitch (data) {case 1: test1 (); break; case 2: test2 (); break; case 3: test (); break; / / And so on...} / / Goodconst data = {1: test1, 2: test2, 3: test} data [anything] & & data [anything] () / / Badif (type = 'test1') {test1 ();} else if (type =' test2') {test2 () } else if (type = 'test3') {test3 ();} else if (type =' test4') {test4 ();} else {throw new Error ('Invalid value' + type);} / / Goodconst types = {test1: test1, test2: test2, test3: test3, test4: test4}; const func = types [type]; (! func) & throw new Error ('Invalid value' + type); func () The above is all the content of the article "how to abbreviate switch code blocks in js". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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