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Most people do not understand the knowledge points of this article "es6 array how to remove the prescribed value", so the editor summarizes the following contents, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "es6 array how to remove the prescribed value" article.

Remove the method: 1, use the "arr.splice (arr.indexOf (" specified value "), 1)" statement, use indexOf () to find the location of the specified value, and then use splice () to delete the element according to the location; 2, use the "delete arr [arr.indexOf (" value ")] statement.

The operating environment of this tutorial: windows7 system, ECMAScript version 6, Dell G3 computer.

The es6 array removes the specified value

Method 1: using indexOf () and splice () methods

The idea of realization is:

Use indexOf () to find the location of the specified value

Delete the element based on location using splice ()

Implementation code:

Var arr = ["Banana", "Orange", "Apple", "Mango"]; console.log (arr); var a = arr.indexOf ("Apple"); arr.splice (aMagin1); console.log (arr)

Method 2: using the indexOf () method and the delete keyword

The idea of realization is:

Use indexOf () to find the location of the specified value

Delete the element by location using the delete keyword

Delete arr [index]

Implementation code:

Var arr = ["Banana", "Orange", "Apple", "Mango"]; console.log (arr); var index = arr.indexOf ("Orange"); delete arr [index]; console.log (arr)

Description: after deleting an element using delete, the subscript location element will be displayed as undefined, that is, an empty element

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