Nodejs Int Parse toIntZero()

Method Source Code

String.prototype.toIntZero = function(){
  var val = parseInt(this);
  if(isNaN(val)){
    return 0;/*from   w ww.j  a v a2  s.  c o  m*/
  }else{
    return val
  }
};

Related

1. toInt()

   String.prototype.toInt = function() {
     return parseInt(this, 10);
   };
   

2. toInt()

   String.prototype.toInt = function() {
     return parseInt(this);
   

3. toInt()

   const string = '10.5';
   String.prototype.toInt = () => parseInt(string);
   String.prototype.toFloat = () => parseFloat(string);
   const convert = string.toInt();
   const convertToFloat = string.toFloat();
   console.log('------------------------------------------');
   console.log('result chaining:');
   console.log('------------------------------------------');
   console.log('string.toInt()\n', convert);
   ...
   

4. toInt()

   String.prototype.toInt = function(){
       var str = this;
       str = str.toLowerCase();
       str = str.replace(/ /g, "");
       str = str.replace(/?/g, "");
       return parseInt(str);
   

5. toInt(fallBack)

   String.prototype.toInt = function (fallBack) {
       fallBack = fallBack || 0;
       var str = this;
       if(!str){
           return fallBack;
       var strAsInt = parseInt(str);
       if(isNaN(strAsInt)){
           return fallBack;
   ...
   

6. toInteger()

   String.prototype.toInteger=function(){
     var s,x;
     if(s=/(^[+-]?)(0b[01]+$)/.exec(this)) {
       x=Number(s[2]);
       return s[1]!='-'?x:-x;
     } else if(s=/(^[+-]?)(0o[0-7]+$)/.exec(this)) {
       x=Number(s[2]);
       return s[1]!='-'?x:-x;
     } else if(s=/(^[+-]?)(0x[0-9a-fA-F]+$)/.exec(this)) {
   ...