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module.exports = {
indexOf: function(arr, item) {
var i, j;
if (Array.prototype.indexOf) {
return arr.indexOf(item);
}
for (i = 0, j = arr.length; i < j; i++) {
if (arr[i] === item) {
return i;
}
}
return -1;
},
forEach: function(arr, fn, scope) {
var i, j;
if (Array.prototype.forEach) {
return arr.forEach(fn, scope);
}
for (i = 0, j = arr.length; i < j; i++) {
fn.call(scope, arr[i], i, arr);
}
},
trim: function(str) {
if (String.prototype.trim) {
return str.trim();
}
return str.replace(/(^\s*)|(\s*$)/g, "");
},
spaceIndex: function(str) {
var reg = /\s|\n|\t/;
var match = reg.exec(str);
return match ? match.index : -1;
}
};
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