vm.$log( [keypath] ) Arguments: {String} [keypath] Usage:
vm.$eval( expression ) Arguments: {String} expression Usage:
vm.$set( keypath, value ) Arguments: {String} keypath {*} value
vm.$delete( key ) Arguments: {String} key Usage:
vm.$get( expression ) Arguments: {String} expression Usage:
vm.$watch( expOrFn, callback, [options] ) Arguments: {String | Function} expOrFn {Function}
vm.$interpolate( templateString ) Arguments: {String} templateString