JS extract integer part, remove the first last space

Adding a method to Object.prototype makes the method available to all objects in such a way that the function, array, string, number, regular expression, and Boolean value are equally applicable. For example, add a method for Function.prototype to make the method available to all functions.

　　The method is added in order to not enter the prototype attribute. Method is available for all functions

Function.prototype.method = function (name, func) {    this.prototype[name] = func;    return this;}

　1. Use method to add an integer function to the number type to get the numeric integral part.

Number.method (' Integer ', function () {  return math[this < 0? ' Ceil ': ' floor ' [this];});

Test: -10/3 = 3.333333 ....

Console.log (( -10/3). Integer ());

>-3//Results

2. Remove the space at the beginning of the string, which is also an oversight of native JS.

String.method (' Trim ', function () {    return this.replace (/^\s+|\s+$/g, ');}); Console.log ("    trim    ". Trim ());    The "    trim    " String is the one in the trim method.

> "Trim"//Result no spaces

　　

　

JS extract integer part, remove the first last space