function-stack
v0.0.2
Published
function-stack ==============
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function-stack
a simple stack for executing js functions.
on initialization, the stack takes in a list of functions, appends them to the stack, and executes them.
when a function is pushed into the stack, it is immediately popped off and executed.
the application use for something like this is a remote script that contains a library function needed. create a list of function calls, then when the lib is loaded, run through them
this was inspired by googletag's command array.
ex: local script
var fns = [];
fns.push(function() {
notImplemented();
});remote script
function notImplemented() {
alert('implemented\!')
}
fns = FunctionStack(fns);and example html test:
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>A friendly example</title>
<!-- need to load FunctionStack -->
<script src="../dist/fs.min.js"></script>
</head>
<body>
<script>
window['_namespace'] = window['_namespace'] || {};
// first push fn to stack
window['_namespace'].fns = [];
window['_namespace'].fns.push(function() {
window['_namespace'].notImplemented();
});
</script>
<script>
// now load lib
setTimeout(function() {
window['_namespace'] = window['_namespace'] || {};
window['_namespace'].notImplemented = function() {
alert('implemented!');
};
// then turn array to FunctionStack
window['_namespace'].fns = FunctionStack(window['_namespace'].fns);
}, 500);
</script>
</body>
</html>license
the command array samples are released under apache 2.0 license so this will as well.
errata
an important thing to note is that the functions that are coming in from the remote script must be available in the global window usually recommended to set a namespace for the functions so that they don't interfere
this was designed to be used in an ad serving environment