44 lines
1.0 KiB
JavaScript
44 lines
1.0 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
if (!process.version ||
|
||
|
|
process.version.indexOf('v0.') === 0 ||
|
||
|
|
process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {
|
||
|
|
module.exports = nextTick;
|
||
|
|
} else {
|
||
|
|
module.exports = process.nextTick;
|
||
|
|
}
|
||
|
|
|
||
|
|
function nextTick(fn, arg1, arg2, arg3) {
|
||
|
|
if (typeof fn !== 'function') {
|
||
|
|
throw new TypeError('"callback" argument must be a function');
|
||
|
|
}
|
||
|
|
var len = arguments.length;
|
||
|
|
var args, i;
|
||
|
|
switch (len) {
|
||
|
|
case 0:
|
||
|
|
case 1:
|
||
|
|
return process.nextTick(fn);
|
||
|
|
case 2:
|
||
|
|
return process.nextTick(function afterTickOne() {
|
||
|
|
fn.call(null, arg1);
|
||
|
|
});
|
||
|
|
case 3:
|
||
|
|
return process.nextTick(function afterTickTwo() {
|
||
|
|
fn.call(null, arg1, arg2);
|
||
|
|
});
|
||
|
|
case 4:
|
||
|
|
return process.nextTick(function afterTickThree() {
|
||
|
|
fn.call(null, arg1, arg2, arg3);
|
||
|
|
});
|
||
|
|
default:
|
||
|
|
args = new Array(len - 1);
|
||
|
|
i = 0;
|
||
|
|
while (i < args.length) {
|
||
|
|
args[i++] = arguments[i];
|
||
|
|
}
|
||
|
|
return process.nextTick(function afterTick() {
|
||
|
|
fn.apply(null, args);
|
||
|
|
});
|
||
|
|
}
|
||
|
|
}
|