JS Anonymous function call method

JS Anonymous function call method
Mode 1, call the function, get the return value. The force operator makes the function call execute

View Sourceprint?1 (function (x,y) {

2 alert (x+y);

3 return x+y;

4} (3,4));

Mode 2, call the function, get the return value. Force the function to perform a direct amount of execution and return a reference, and then invoke the execution

View Sourceprint?1 (function (x,y) {

2 alert (x+y);

3 return x+y;

4}) (3,4);

This is also the way many libraries love to call, such as Jquery,mootools.

Mode 3, using void

View sourceprint?1 void function (x) {

2 x = x-1;

3 alert (x);

4} (9);

Mode 4, using the-/+ operator

View Sourceprint?01-function (x,y) {

alert (x+y);

return x+y;

04} (3,4);

05

+function (x,y) {

alert (x+y);

return x+y;

09} (3,4);

10

One--function (x,y) {

alert (x+y);

return x+y;

14} (3,4);

15

++function (x,y) {

alert (x+y);

return x+y;

19} (3,4);

Finally look at the wrong way to call

View sourceprint?1 function (x,y) {

2 alert (x+y);

3 return x+y;

4} (3,4);