String sort

1 array.sort()

Array comes with sort, Sort according to string rules

console.log([5,4,3,2,11].sort()) // 11,2,3,4,5
console.log(["5","4","3","2","11"].sort()) // 11,2,3,4,5
console.log(["5 5、 ... and ","4 Four ","3 3、 ... and ","2 Two ","11 One "].sort()) // 11 One ,2 Two ,3 3、 ... and ,4 Four ,5 5、 ... and 
console.log([" 5、 ... and "," Four "," 3、 ... and "," Two "," One "].sort())//  One , Two , 3、 ... and , Four , 5、 ... and 

2 All numeric sort

console.log([5,4,3,2,11].sort((a, b) => a-b)) // 2,3,4,5,11
console.log(["5","4","3","2","11"].sort((a, b) => a-b)) // 2,3,4,5,11
console.log(["5 5、 ... and ","4 Four ","3 3、 ... and ","2 Two ","11 One "].sort((a, b) => a-b)) // 5 5、 ... and ,4 Four ,3 3、 ... and ,2 Two ,11 One 
console.log([" 5、 ... and "," Four "," 3、 ... and "," Two "," One "].sort((a, b) => a-b))//  5、 ... and , Four , 3、 ... and , Two , One 

3 Sort according to the number in the string

such as 1 class ,2 class ,……

const arr = ['5 class ', '4 class ', '3 class ', '2 class ', '11 class ']
//  With numbers in front , Non numeric after 
console.log(arr.sort((a, b) => parseFloat(a) - parseFloat(b))) // 2 class ,3 class ,4 class ,5 class ,11 class 
//  A string containing only one integer value , Use regular expressions directly to delete the characters of numbers 
console.log(arr.sort((a, b) => a.replace(/[^\d]/g,' ') - b.replace(/[^\d]/g,' ')))