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This article mainly introduces "how to clear all elements of es6 array". In daily operation, I believe many people have doubts about how to remove all elements of es6 array. Xiaobian consulted all kinds of data and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubt of "how to remove all elements of es6 array". Next, please follow the editor to study!

Clear method: 1, directly assign the value to "[]", syntax "arr= [];"; 2, use splice () to delete all array elements, syntax "arr.splice"; 3, use the length attribute to set the array length to 0, syntax "arr.length=0;".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Method of clearing all elements

Method 1: directly assign an empty array []

Var arr=new Array ("banana", "apple", "pear", "orange", "orange", "durian"); console.log (arr); arr= []; console.log (arr)

Output result:

Method 2: delete all array elements using splice ()

You only need to specify the splice () method to start with the first array element, and you need to delete the number of elements as arr.length to empty the array.

Var arr=new Array ("banana", "apple", "pear", "orange", "orange", "durian"); console.log (arr); arr.splice (0memery arr.length); console.log (arr)

Method 3: use the length attribute to set the array length to 0

The length property sets or returns the array length. When the value of the length attribute is less than the length of the array itself, the subsequent elements of the array are truncated; if the value of the length attribute is 0, you can empty the entire array.

Var arr=new Array ("banana", "apple", "pear", "orange", "orange", "durian"); console.log (arr); arr.length=0;console.log (arr)

At this point, the study on "how to clear all the elements of the es6 array" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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