ie8 Object doesn't support this for extjs code

Question

i am getting the following error: "Object doesn't support this property or method" in ie8
in chrome its fine
when i debug ext js code in ie8 its shows undefined for region.getWorld();
but where as when I see it in chrome browser I am getting the values
providing my code below, can you guys tell me what is the problem

allWidth: function() {
    var me = this,
        states = me.getstates(),
        waterY = 0,
        placeY = 0,
        World;

    states.forEach(function(region) {
        World = region.getWorld();
        if (World.y < placeY) {
            placeY = World.y;
        }
        if (World.y + World.height > waterY) {
            waterY = World.y + World.height;
        }
    });

    return waterY - placeY;
},

nderscore · Accepted Answer · 2015-05-05 16:14:08Z

1

IE8 doesn't support the forEach method for Arrays. You have a few options to fix this.

You could use a normal for loop:

for(var i = 0; i < states.length; i++){
    var region = states[i];
    /* ... */

Since you're using extjs, you could also use the Ext.each method instead:

Ext.each(states, function(region){
...

Or you could use a shim/polyfill to add the forEach method in IE8.

You can find a polyfill for the forEach method on MDN here.

edited May 5, 2015 at 16:14

answered May 5, 2015 at 16:00

nderscore

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4 Comments

user4739617 Over a year ago

any idea how to convert this one here.layout.getStates().forEach(function(State) { StateBox.push({ }); });

weeksdev Over a year ago

this is how you could do it using the function in ExtJS. Ext.each(layout.getStates(), function(state){ StateBox.push({}); });

user4739617 Over a year ago

@weeksdev did u miss here by mistake in ur answer here.layout.getStates().

weeksdev Over a year ago

yeah, lol, thought that was the end of your previous sentence.

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