Take a look at -ftrapv and -fwrapv: -ftrapv This option generates traps for signed overflow on addition, subtraction, multiplication operations. -fwrapv This option instructs the compiler to assume that signed arithmetic overflow of addition, subtraction and multiplication wraps around using twos-complement representation. This flag enables some optimizations and disables other. This option is enabled by … Read more
if (thing) { //your code } Is that what you are looking for?
The answer seems to be … expect(A.NONEXISTINGPROP).not.toBeDefined(); ie remove the name bit
The issue here is that RTLD_NEXT is not defined by the posix standard . So the GNU people don’t enable it unless you #define _GNU_SOURCE or -D_GNU_SOURCE. Other relevant pieces of POSIX are dlfcn.h and dlsym.h. Interestingly, the later mentions RTLD_NEXT. Apparently, the GNU people are a bit confused about what is an extension and … Read more
You don’t get an error because you use a string to check if the property exists. You will get the error this way: interface Obj{ a: any; } const obj: Obj = { a: “test” }; if (obj.b) // this is not allowed if (“b” in obj) // no error because you use string If … Read more
I had the same problem and based on the 1.10.0 version of jquery ui, I think you should try data(‘uiAutocomplete’) instead of data(‘autocomplete’) Based on Johnny’s comment, I checked how the .data() function works. Yes, jQuery returns null from .data() call when selector does not find any items. So if there is no matching element … Read more
In recent browser, you can use filter var size = arr.filter(function(value) { return value !== undefined }).length; console.log(size); Another method, if the browser supports indexOf for arrays: var size = arr.slice(0).sort().indexOf(undefined); If for absurd you have one-digit-only elements in the array, you could use that dirty trick: console.log(arr.join(“”).length); There are several methods you can use, … Read more
Javascript now supports a null-coalescing operator: ??. It may not be production-ready (consult the support table), but it’s certainly safe to use with Node or a transpiler (TypeScript, Babel, etc.). Per MDN, The nullish coalescing operator (??) is a logical operator that returns its right-hand side operand when its left-hand side operand is null or … Read more
The typescript compiler performs strict null checks, which means you can’t pass a string | undefined variable into a method that expects a string. To fix this you have to perform an explicit check for undefined before calling luminaireReplaceLuminaire(). In your example: private selectedSerialForReplace(): string | undefined { return this.selectedSerials.pop(); } luminaireReplaceLuminaire(params: { “serial”: string; … Read more