function main()
{
Hello();
}
function Hello()
{
// How do you find out the caller function is 'main'?
}
有办法找到调用堆栈吗?
function main()
{
Hello();
}
function Hello()
{
// How do you find out the caller function is 'main'?
}
有办法找到调用堆栈吗?
当前回答
function Hello() {
alert(Hello.caller);
}
其他回答
试试下面的代码:
function getStackTrace(){
var f = arguments.callee;
var ret = [];
var item = {};
var iter = 0;
while ( f = f.caller ){
// Initialize
item = {
name: f.name || null,
args: [], // Empty array = no arguments passed
callback: f
};
// Function arguments
if ( f.arguments ){
for ( iter = 0; iter<f.arguments.length; iter++ ){
item.args[iter] = f.arguments[iter];
}
} else {
item.args = null; // null = argument listing not supported
}
ret.push( item );
}
return ret;
}
在火狐21和Chromium-25里为我工作过。
试着访问这个:
arguments.callee.caller.name
我认为下面的代码段可能会有帮助:
window.fnPureLog = function(sStatement, anyVariable) {
if (arguments.length < 1) {
throw new Error('Arguments sStatement and anyVariable are expected');
}
if (typeof sStatement !== 'string') {
throw new Error('The type of sStatement is not match, please use string');
}
var oCallStackTrack = new Error();
console.log(oCallStackTrack.stack.replace('Error', 'Call Stack:'), '\n' + sStatement + ':', anyVariable);
}
执行以下代码:
window.fnPureLog = function(sStatement, anyVariable) {
if (arguments.length < 1) {
throw new Error('Arguments sStatement and anyVariable are expected');
}
if (typeof sStatement !== 'string') {
throw new Error('The type of sStatement is not match, please use string');
}
var oCallStackTrack = new Error();
console.log(oCallStackTrack.stack.replace('Error', 'Call Stack:'), '\n' + sStatement + ':', anyVariable);
}
function fnBsnCallStack1() {
fnPureLog('Stock Count', 100)
}
function fnBsnCallStack2() {
fnBsnCallStack1()
}
fnBsnCallStack2();
日志是这样的:
Call Stack:
at window.fnPureLog (<anonymous>:8:27)
at fnBsnCallStack1 (<anonymous>:13:5)
at fnBsnCallStack2 (<anonymous>:17:5)
at <anonymous>:20:1
Stock Count: 100
你可以使用调试器;在功能上。 打开inspect元素和watch调用堆栈;
function Hello() {
alert(Hello.caller);
}