Nodejs Int Parse toInt()

Method Source Code

const string = '10.5';
String.prototype.toInt = () => parseInt(string);
String.prototype.toFloat = () => parseFloat(string);
const convert = string.toInt();//from   w  w  w.j  av  a 2s. com
const convertToFloat = string.toFloat();

console.log('------------------------------------------');
console.log('result chaining:');
console.log('------------------------------------------');
console.log('string.toInt()\n', convert);
console.log(`Type Data: ${typeof convert}`);
console.log('------------------------------------------');
console.log('string.toFloat()\n', convertToFloat);
console.log(`Type Data: ${typeof convertToFloat}`);

console.log('------------------------------------------');
const number = 10;
Number.prototype.toString = () => number + '';
console.log('number.toString()\n', number.toString());
console.log(`Type Data: ${typeof number.toString()}`);

Related

1. toInt()

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

2. toInt()

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

3. toInt()

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

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. toIntZero()

   String.prototype.toIntZero = function(){
     var val = parseInt(this);
     if(isNaN(val)){
       return 0;
     }else{
       return val
   };
   

7. 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)) {
   ...