Hello World
{"ScriptPreparationCode":"const canvas = document.createElement(\u0027canvas\u0027)\r\nwindow.context = canvas.getContext(\u00272d\u0027)","TestCases":[{"Name":"offsetWidth","Code":"document.querySelector(\u0027div\u0027).offsetWidth","IsDeferred":false},{"Name":"getBoundingClientRect","Code":"document.querySelector(\u0027div\u0027).getBoundingClientRect().width","IsDeferred":false},{"Name":"canvas","Code":"window.context.measureText(\u0027H\u0027)\r\nwindow.context.measureText(\u0027e\u0027)\r\nwindow.context.measureText(\u0027l\u0027)\r\nwindow.context.measureText(\u0027l\u0027)\r\nwindow.context.measureText(\u0027o\u0027)\r\nwindow.context.measureText(\u0027world\u0027)","IsDeferred":false}]}