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threshold : 0, // You can set threshold on how close to the edge ad should come before it is loaded. Default is 0 (when it is visible).
forceLoad : false, // Ad is loaded even if not visible. Default is false.
onLoad : false, // Callback function on call ad loading
onComplete : false, // Callback function when load is loaded
timeout : 1500, // Timeout ad load
debug : false, // For debug use : draw colors border depends on load status
xray : false // For debug use : display a complete page view with ad placements
console.log(“error loading lazyload_ad ” + exception);
, has been upgraded with a new bytecode format that improves memory efficiency and type safety.
Two big changes were cited as part of the new format:
op_wide, followed by a series of four-byte slots for the original opcode and its arguments.
The new bytecode also features a metadata table. When linking, a side table is initialized with all writeable data associated with a given instruction. In addition, type safety was increased through improvements to bytecode-related infrastructure. A caching API for the new bytecode is in development in the WebKit repo. Developers can contribute at .
Developers involved with the project had sought to fix two major issues with the old bytecode format. First, it used too much memory, and second, it included an instruction stream that was writeable, which prevented memory-mapping the bytecode stream. The old bytecode format also had optimizations that were no longer beneficial, such as .
The new bytecode format is available on the Safari 12.1 browser, which shipped with iOS 12.1 and MacOS 10.14.4, and the Safari Technology Preview. You can from .
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