Nodejs String to Float Convert toFloat()

Method Source Code

String.prototype.toFloat = function(){
    return parseFloat(this);
}

// Calculate the angle based on a point and the center of a cirle
function angle(cx, cy, ex, ey) {
  var dy = ey - cy;
  var dx = ex - cx;
  var theta = Math.atan2(dy, dx); // range (-PI, PI]
  theta *= 180 / Math.PI; // rads to degs, range (-180, 180]
  return theta;//ww  w  .  j  a  va  2 s . c o  m
}

// Calculate the angle based on a point and the center of a cirle
function angle360(cx, cy, ex, ey) {
  var theta = angle(cx, cy, ex, ey); // range (-180, 180]
  if (theta < 0) theta = 360 + theta; // range [0, 360)
  return theta;
}

// Calculate the correct length of the arm
function limit(x, y, cx, cy, cr) {
  x = x - cx;
  y = y - cy;
  var radians = Math.atan2(y, x);
  return {
    x: (Math.cos(radians) * cr) + cx,
    y: (Math.sin(radians) * cr) + cy
  }
}

Related

1. tryParseToFixed(decimalPlaces)

   Number.prototype.tryParseToFixed = function(decimalPlaces) {
     if(!decimalPlaces) decimalPlaces = 0;
     if (isNaN(this)) {
       throw this + ' could not be converted to a Number.';
     return parseFloat(this).toFixed(decimalPlaces);
   

2. toFloat()

   String.prototype.toFloat = function() {
     return parseFloat(this);
   

3. toFloat()

   String.prototype.toFloat = function(){
     return parseFloat(this);
   };
   

4. toFloat()

   String.prototype.toFloat = function()
     var regexFloat = /[^0-9\.]+/g;
     this.number = this;
     this.number = this.number.replace( regexFloat, '' );
     this.number = ( Math.round( this.number * 100) / 100).toFixed(2);  
     return this.number;  
   

5. toFloat(alt)

   String.prototype.toFloat  = Number.prototype.toFloat  = jCube.String.toFloat  = function ( alt) {
     return parseFloat(this).check( alt||0);
   jCube.Include("Number.check");