Shulou(Shulou.com)06/01 Report--

This article introduces the relevant knowledge of "what is the use of some in es6". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

In es6, the function of some is to detect whether the specified element exists in the array; if there is a specified element, the result is true; if there is no specified element, the result is false, and the syntax is "array.some (callback function), thisValue)".

This article operating environment: windows10 system, Vue2.9.6 version, DELL G3 computer.

What is the function of some in es6

The some () method tests whether an element in the array passes the test implemented by the provided function.

Grammar

Array.some (callback [, thisObject])

Parameter details

Callback-Test the function of each element.

ThisObject-the object that is used as this object when the callback is performed.

Return value

Returns true if an element passes the test, false otherwise.

Example

Function isBigEnough (element, index, array) {return (element > = 10);} var retval = [2,5,8,1,4] .some (isBigEnough); console.log ("Returned value is:" + retval); var retval = [12,5,8,1,4] .some (isBigEnough); console.log ("Returned value is:" + retval)

Output

This is the end of the content of "what is the use of some in es6". Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.