How to remove the last character from an es6 string

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Methods: 1, use "[... str]" or "Array.from (str)" to convert the string into a character array; 2, delete the last element of the array with "arr.pop ()" or "arr.splice (- 1 str)"; 3, use "arr.join (") "to convert the processed array back to the string.

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

Es6 string removes the last character

In es6, to remove the last character of a string, you can use an array

1. Use the extension operator "." Or Array.from () converts a string to a character array

Var str = "abcdefg1234567" var arr1= [... str]; var arr2=Array.from (str); console.log (arr1); console.log (arr2)

2. Delete the last element of the character array

You can use the pop () function

Var str = "abcdefg1234567" var arr1= [... str]; console.log (arr1); console.log (arr1.pop ()); console.log (arr1)

You can also use the splice () function

Var str = "abcdefg1234567" var arr1= [... str]; console.log (arr1); arr1.splice (- 1Magne1); console.log (arr1)

3. Convert the processed array back to the string

Var s = arr1.join (""); / / specify the delimiter console.log (s); / / return the string

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