javascript maximum call stack size exceeded

JavaScript often uses settimeout to postpone execution of a function, such as: Copy Code code as follows: settimeout (function () {alert ("Hello World");},1000); A delay of 1 seconds after execution to this sentence pops up the alert window. So look at this paragraph again: Copy Code code as follows: function A () { settimeout (function () {alert (1)}, 0); Alert (2); } A (); Note that the settime

SetTimeout is often used in Javascript to delay the execution of a function, for example:Copy codeThe Code is as follows:SetTimeout (function () {alert ("Hello World") ;},1000 ); The alert window will pop up one second after this sentence is executed. Let's look at this section again:Copy codeThe Code is as follows:Function (){SetTimeout (function () {alert (1)}, 0 );Alert (2 );}A (); Note that the setTimeout delay in this code is set to 0, that is, t

Every time when a function run it'll be push into the call stack and put on the top, you can think call stack is Someth ing like a heap ... Javascirpt have only one call stack.In the "Picture", Main () Get call first, then put int