javascript 替换所有空间包机

Posted 2021-05-03

// -----
// -- Option 1

var newNewStr = "Not RegEx! Please no!";
 
newNewStr = newNewStr.replace(/\s/g, "_");
 
console.log(newNewStr); //"Not_RegEx!_Please_no!"

// -----
// -- Option 2

// You can do it specifying the characters you want to remove:

string = string.replace(/[&\/\\#,+()$~%.'":*?<>{}]/g, '');

// Alternatively, to change all characters except numbers and letters, try:

string = string.replace(/[^a-zA-Z0-9]/g, '');

// -----
// -- Option 3


var str = " a b    c d e   f g   ";
var newStr = str.replace(/\s+/g, '');
// "abcdefg"