How to remove the first two digits of a string in javascript

Javascript method to remove the first two digits of a string: 1. Use the slice() function, the syntax "string.slice(2)"; 2. Use the substring() function, the syntax "string.substring(2)" ".

The operating environment of this tutorial: windows7 system, javascript version 1.8.5, Dell G3 computer.

javascript removes the first two digits of the string

Method 1: Use the slice() function

## The #slice(start, end) method extracts a portion of a string and returns the extracted portion as a new string.

Use the start (inclusive) and end (exclusive) parameters to specify the part of the string to extract.

• start The first character position in the parameter string is 0, the second character position is 1, and so on. If it is a negative number, it means how many strings to intercept from the tail, slice (-2) means extracting the second to last element in the original array to the last element (including the last element).

• #If the end parameter is a negative number, -1 refers to the position of the last character of the string, -2 refers to the second to last character, and so on.

Example:

var str="ab12345";
console.log(str.slice(2))   //   =>  12345

Method 2: Use substring() function

The substring(from, to) method is used to extract characters between two specified subscripts in a string.

The substring() method returns a substring that includes the characters at the beginning, but does not include the characters at the end.

Example:

var str="ab12345";
console.log(str.substring(2))   //   =>  12345

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